An interesting fact about the human ear is that in the cochlea, hair cells are located close to each other, moving in unison and assuming distinct cell shapes independent of one another.

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?

Each of the letters in the table above can have a value of 1, 2, or 3. Each row can only have exactly one of each of these numbers, and the same is true for each column. What is the value of ?

(1)

(2)

The graph above represents three different main methods of exercise for members of Gym (running, lifting weights, or exercise classes) in 2000 and 2010. In 2010, the members who run as their main method of exercising represents what percentage of all members of Gym at the time?

(1) The total number of members that weight lift as their main exercise decreased by 300 members from 2000 to 2010.

(2) All members of Gym are represented in the graph for the relevant years.

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 .

The graph above shows the percentage of students who take various modes of transportation to/from school for each grade at Fairmount Middle School. If there are 200 6th graders, 300 7th graders, and 200 8th graders, how many students in total take the bus to/from school?

Jericho, a 2006 post-apocalyptic drama, is centered around the struggle of the citizens of a small town to survive in a time when little water or resources exist.

At a city council meeting, one attendee is to be selected at random to be a tiebreaker. What is the probability that the person chosen is retired?

1. One-third of the attendees are retired.
2. Twenty-four of the attendees are not retired.

A right triangle has two legs of equal length. What is the triangle's perimeter in meters?

(1) The area of the triangle is 3 square meters.

(2) The hypotenuse of the triangle measures 3 meters.

A bag holds 12 balls, each of which is colored white, black, gray, or green. If a person is to select a ball randomly from the bag, is the probability less than that the ball selected will be either white or green?

1. The probability that the person will select a gray ball is .
2. The probability that the person will select a green ball is .

At a city council meeting, one attendee is to be selected at random to be a tiebreaker. What is the probability that the person chosen is retired?

1. One-third of the attendees are retired.
2. Twenty-four of the attendees are not retired.

If is an integer greater than zero, then is

Is the positive integer  a multiple of 18?

(1)  is a multiple of 6.

(2)  is a multiple of 9.

What is the value of ?

(1)

(2)

denotes the greatest integer less than or equal to . Is ?

(1)

(2)

A recently unearthed sculpture appears to be the work of either the ancient Greek sculptor Achermus, who lived in Chios, or Leochares of Athens, whose sculptures sometimes resembled those of Achermus. Analysis of the sculpture reveals that it is made of a marble quarried near Chios; the marble found near Athens is a different color. Thus, the sculpture was probably made by Achermus.

Which of the following is an assumption that the argument requires?

Which of the following most logically completes the argument below?

Too much fishing effort leads to excessively high catches, labeled “overfishing” when annual volumes exceed ecologically sustainable levels. In order to bring total catch down to an ecologically sustainable level, authorities propose to introduce Total Allowable Catches (TACs), a quota on the number of fish a boat can bring in. This proposal, however, is ill conceived, since _______.

The town of Greenville witnessed a decline in butterfly population after rangers planted a new varieties of flowers in its public parks. Bee and songbird populations also experienced a drop. The town parks manager, however, maintains that the decline in wildlife has nothing to do with the new flower varieties.

Which of the following, if true, most strongly supports the parks manager’s position?

SaveStop, a prominent convenience store chain, sells some of its most popular items at a very low cost. Careful analysis of the chain’s financial reports reveals that these items are actually sold at a loss to the company. Nonetheless, executives claim that the decision to offer these key items at such a low price is an essential component of the company’s business strategy.

Which of the following, if true, most strongly justifies the claim made by SaveStop’s executives?

Between 2000 and 2010, the number of bass in the Mississippi River and its tributaries experienced a catastrophic decline. There is little evidence that pollution or disease was the cause, so it is likely that there was an increase in the number of bass killed by other means. Typically, recreational fishermen in the region prefer to pursue several varieties of river trout, but a state law passed in 2001 banned the catching of trout in the area. Thus, it is likely that recreational fishing was the immediate cause of the decline of the bass population.

Which of the following, if true, most strengthens the argument?