The graph above represents three different types of items sold at Store (pants, shirts, and shoes) in month and month . In month , the number of shirts sold is what percentage of all items sold at Store at the time?

(1) Store only sells pants, shirts, and shoes.

(2) Together, all pants and shoes account for 62% of the items sold at Store in month .

     Yawning is a reflex consisting of the simultaneous intake of air and reflexive stretching of the eardrums, followed by an exhalation of breath. There are two leading theories of the purpose of yawning, both in humans and other animals. Because yawning is common to most vertebrates, biologists assume that it plays an important role in survival. Two competing theories, dubbed “A” and “B,” seek to explain how.      Supporters of theory A argue that the primary purpose of yawning is to keep the brain cool. The human brain is quite sensitive to even small temperature increases: our reaction times increase and our recall is diminished when the temperature of the brain differs a few tenths of a degree from the perfect temperature of 98.6° F. The proponents of theory A point out that, in terms of escaping from a predator, these tiny temperature changes in the brain could easily be the difference between life and death.      However, critics of theory A argue that yawning is not more common in warmer climates, and that the body has much more sophisticated methods of maintaining the optimal temperature in the brain—the circulatory system, for one example, and sweating, for another. They advocate theory B, which claims that yawning plays a primarily social role based on the fact that yawning is “contagious.”      Because yawning is so demonstrative and affects the body so little, say supporters of theory B, the reflex is most likely a social mode of communication that happens to have some slight physiological effects. The contagiousness of yawning has been shown to be stronger among group members who feel closer to each other, implying that it has a major social component. Based on this information, theory B claims that the primary purpose of yawning is to communicate an increased need for alertness throughout a group. This alertness, according to theory B, is only slightly encouraged by the yawning itself; the real benefit of the contagious yawn is that the yawning animal is reminded to stay alert to the other members of the group and to the surroundings.

     Yawning is a reflex consisting of the simultaneous intake of air and reflexive stretching of the eardrums, followed by an exhalation of breath. There are two leading theories of the purpose of yawning, both in humans and other animals. Because yawning is common to most vertebrates, biologists assume that it plays an important role in survival. Two competing theories, dubbed “A” and “B,” seek to explain how.      Supporters of theory A argue that the primary purpose of yawning is to keep the brain cool. The human brain is quite sensitive to even small temperature increases: our reaction times increase and our recall is diminished when the temperature of the brain differs a few tenths of a degree from the perfect temperature of 98.6° F. The proponents of theory A point out that, in terms of escaping from a predator, these tiny temperature changes in the brain could easily be the difference between life and death.      However, critics of theory A argue that yawning is not more common in warmer climates, and that the body has much more sophisticated methods of maintaining the optimal temperature in the brain—the circulatory system, for one example, and sweating, for another. They advocate theory B, which claims that yawning plays a primarily social role based on the fact that yawning is “contagious.”      Because yawning is so demonstrative and affects the body so little, say supporters of theory B, the reflex is most likely a social mode of communication that happens to have some slight physiological effects. The contagiousness of yawning has been shown to be stronger among group members who feel closer to each other, implying that it has a major social component. Based on this information, theory B claims that the primary purpose of yawning is to communicate an increased need for alertness throughout a group. This alertness, according to theory B, is only slightly encouraged by the yawning itself; the real benefit of the contagious yawn is that the yawning animal is reminded to stay alert to the other members of the group and to the surroundings.

When Medgar Evers applied to the then-segregated University of Mississippi Law School in February 1954, he did so at a crucial moment in American history. Three months later, in May, the Supreme Court’s landmark decision in Brown v. Board of Education struck down state-sponsored segregation, stating that "separate educational facilities are inherently unequal." The school’s refusal to admit Evers drew the interest of the NAACP and ultimately became the epicenter of its historic campaign to desegregate the school.

The Brown v. Board of Education ruling paved the way for integration and was a major victory for the civil rights movement, but the South was not ready to accept the change. The state governments of Texas, Arkansas, Florida and Alabama actively fought the decision, with some politicians physically blocking African American students’ entry into high schools and universities, moving aside only when confronted with military officers sent by the federal government to enforce the law. The entrenched racism of the South came into conflict with the rest of the country, creating a sense for African Americans that they would have to fight for the rights that had, legally, already been granted to them.

Evers was an active public figure, conducting well-publicized investigations into race-based injustices being perpetrated in the South, such as the unprosecuted murder of fourteen-year-old Emmett Till. This limelight brought numerous death threats and attempts on his life. On June 12, 1963, just hours after President John F. Kennedy's historic Civil Rights Address, Evers was shot in the back outside his home by a white supremacist. While his death was undoubtedly a tragic loss, some scholars have suggested that it galvanized the African American community, giving many members renewed motivation to carry on Evers’s crusade. His murder was a rallying cry for those who supported civil rights in the U.S., and his legacy continues to lend strength to the ongoing campaign for racial equality.

When Medgar Evers applied to the then-segregated University of Mississippi Law School in February 1954, he did so at a crucial moment in American history. Three months later, in May, the Supreme Court’s landmark decision in Brown v. Board of Education struck down state-sponsored segregation, stating that "separate educational facilities are inherently unequal." The school’s refusal to admit Evers drew the interest of the NAACP and ultimately became the epicenter of its historic campaign to desegregate the school.

The Brown v. Board of Education ruling paved the way for integration and was a major victory for the civil rights movement, but the South was not ready to accept the change. The state governments of Texas, Arkansas, Florida and Alabama actively fought the decision, with some politicians physically blocking African American students’ entry into high schools and universities, moving aside only when confronted with military officers sent by the federal government to enforce the law. The entrenched racism of the South came into conflict with the rest of the country, creating a sense for African Americans that they would have to fight for the rights that had, legally, already been granted to them.

Evers was an active public figure, conducting well-publicized investigations into race-based injustices being perpetrated in the South, such as the unprosecuted murder of fourteen-year-old Emmett Till. This limelight brought numerous death threats and attempts on his life. On June 12, 1963, just hours after President John F. Kennedy's historic Civil Rights Address, Evers was shot in the back outside his home by a white supremacist. While his death was undoubtedly a tragic loss, some scholars have suggested that it galvanized the African American community, giving many members renewed motivation to carry on Evers’s crusade. His murder was a rallying cry for those who supported civil rights in the U.S., and his legacy continues to lend strength to the ongoing campaign for racial equality.

Is the triangle above a right triangle?

(1) In an -plane, has coordinates .

(2) In an -plane, has coordinates and has coordinates .

If is the center of the circle above, what fraction of the circular region is shaded?

In the figure above, what is the value of ?

(1)

(2) and are both isosceles and

In the figure above, what is the value of ?

(1)

(2) and are both isosceles and

If arc above is a semicircle, what is the length of segment ?

(1)

(2)

The circle with center shown above is tangent to both axes. If the distance from to is equal to , what is the radius of the circle, in terms of ?

What is the volume of the cube above?

(1) The surface area of the cube is 1014 square centimeters.

(2) The length of diagonal is centimeters.

In the rectangular coordinate system above, if and have equal area, what are the coordinates of point ?

(1) and .

(2) The coordinates of point are .

The circle graph above represents the total amount of items sold at Store , broken down into six categories of different types of items they sell. If the center of the circle is and Store sells a total of 5,800 items, how many items are in category ?

(1)

(2) Combining all categories, except for , accounts for in the graph.

According to the chart above, which of the following is closest to the median total attendees per month at this Waterpark from March through November, inclusive?

In the -plane shown, the shaded region consists of all points that lie above the graph of and below the -axis. Does the point (not shown) lie in the shaded region if ?

(1)

(2)

If arc above is a semicircle, what is the length of diameter ?

(1)

(2)

In the figure above, the point  is the center of the circle and . What is the value of ?