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PREP07 Test 1	Is $${(x+1)\over(x-3)}<0$$?(1) -1 < x < 1(2) $$x^2 - 4 < 0$$
	Which of the following is the lowest positive integer that is divisible by 2, 3, 4, 5, 6, 7, 8,and9?
300难题	The “new scholarship” mentioned in the first paragraph suggests which of the following concerning the “promises” mentioned in lines 4–5?
300难题	A school supply store sells only one kind of desk and one kind of chair， at a uniform cost per desk or per chair. If the total cost of 3 desks and 1 chair is twice that of 1 desk and 3 chairs, then the total cost of 4 desks and 1 chair is how many times that of 1 desk and 4 chairs?
Ready4	In an organization, one tenth of the male staff members and one fourth of the female staff members are involved in sports. If the total number of male staff is half of the number of female staff, then what fraction of the total staff plays sports?
Ready4	If $O$ is the center of the circle above, what fraction of the circular region is shaded?
Ready4	Sasha flips a coin 4 times. What is the probability that she will flip exactly 2 heads and 2 tails?
	The graph shows the distributions of scores on official driving tests administered within a certain municipality for eight consecutive business days. Select from each drop-down menu the option that creates the most accurate statement, given the information provided. 13A The graph provides enough information to determine that the 13B over all of the days indicated in the graph is the same as that for combined.
OG12 OG15	A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are
	If the average (arithmetic mean) of 5 different numbers is 12, what is the median of the 5 numbers?(1) The median of the 5 numbers is equal to $$\frac{1}{3}$$ of the sum of the 4 numbers other than the median.(2) The sum of the 4 numbers other than the median is equal to 45.
OG18-数学分册	Is xy > 5?(1) $$1 \le x \le 3 and 2 \le y \le 4$$(2) x + y = 5
	Is r greater than 0.27?(1)r is greater than$$\frac1 4$$(2)r is equal to$$\frac3 {10}$$
PREP07 Test 1	Is the integer k divisible by 4 ? (1) 8k is divisible by 16. (2) 9k is divisible by 12.
PREP07 Test 2	Is n divisible by 12 ?(1) $$\frac{n}{6}$$ is an integer.(2) $$\frac{n}{4}$$ is an integer.
Magoosh	If a triangle in the xy-coordinate system has vertices at (-2 , -3), (4, -3) and (28, 7), what is the area of the triangle?
Ready4	The ratio of male students to female students in an art class is $\frac{<font color='#FE8080'>4</font>}{5}$ . If $3$ more female students join the class, the ratio of male students to female students would become $\frac{2}{3}$ . How many male students are in the art class?
190113 还原机经选题: 文字题&几何	There are books on the upper and lower floors of the bookshelf. The ratio of the number of books on the top floor to that on the bottom is 4 to 3. If 8 books are taken from the upper floor to the lower one, the ratio of the number of books on the top to that on the bottom will be 4 to 5. How many books on the upper floor at first?
GWD PREP08 Test 2	Information in the passage suggests which of the following concerning the Earth's mantle 2.5 to 4 billion years ago?
Magoosh	What is the value of n?(1) j = -4(2) j = -k
OG12 OG15	What is the value of b + c ?(1)ab + cd + ac + bd = 6(2)a + d = 4