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题目内容
Of Amy`s four sisters, two are taller than Amy and two are shorter than Amy.

Quantity A

The average (arithmetic mean) height of Amy`s four sisters

Quantity B

Amy`s height


Quantity A

The length of line segment DF

Quantity B

12

Quantity A

$$((\frac{1}{10})^{10})^{10}$$

Quantity B

$$\frac{1}{10^{(10^{10})}}$$


A researcher recorded the amount of time, rounded to the nearest second, that it took each of 14 people to complete a certain task. The recorded times are summarized in the boxplot shown. Which of the following statements must be true?

Indicate all such statements.


The scatterplot shows the amount of time, in minutes, that it took a team of two people to mow each of 10 lawns, including a lawn with area 4,100 square feet. Also shown is a trend line that is used to predict the amount of time, in minutes, that it will take the team to mow a lawn based on its area. The amount of time that it took the team to mow the lawn with area 4,100 square feet is approximately what percent less than the amount of time predicted by the trend line?
Approximately how many days will it take for a space vehicle to travel $$5.5(10^{7})$$ kilometers at an average speed of 10 kilometers per second?
The integers a, b, and c are positive, and a > b > c. When a, b, and c are divided by 3, the remainder are 0, 1, and 1, respectively.

Quantity A

The remainder when a+b is divided by 3

Quantity B

The remainder when a-c is divided by 3
$$x^{2}y > 0$$

$$x^{4}y^{2} – x^{4}y < 0$$

Quantity A

y

Quantity B

1
In the sequence of numbers, each number after the first numbers is $$\frac{1}{3}$$ of the preceding number. T is the least number in the sequence that has a value greater than 1.

999, 333, 111, ......

Quantity A

T

Quantity B

3
If k, n, and $$\frac{k}{n}$$ are integers greater than 1, which of the following could be the value of kn?
All of the codes used to unlock a certain type of jewelry box are different arrangements of the letters iin the name "MARSHA," where both the first and last letters in each code are "A"s. How many such 6-letter codes are possible?
The function f is defined by f(x)=|x-a|-|b-x| for all numbers x, where a and b are positive costants. What is the value of f(-4)?
A box contains small toys, and each toy is worth either $3 or $6. If a toy is selected at random from the box, the probability that the selected toy will be worth $6 is 0.25. Which of the following could be the total value of all the toys in the box?

Indicate all such values.
In a certain portfolio 70 percent of the stocks declined in value last month. Of the stocks that declined in value, 40 percent were in large corporations. What percent of the stocks in the portfolio declined in value last month but were not in large corporations?
Pumps A ,B ,and C pump water at their respective constant rates. Working simultaneously, A and B can fill an empty pool in 6 hours. Working simultaneously, B and C can fill the empty pool in 5 hours. Working simultaneously, A and C can fill the empty pool in 4 hours. Working simultaneously, A ,B , and C can fill the empty pool in approximately how many hours?
When a driver got on the expressway, she set the cruise control at 55 miles per hour for the first 2 hours and at 65 miles per hour for the remaining 2.2 hours of the trip. When she returned, she traveled the same distance along the expressway and averaged 50 miles per hour for the return trip. How many more minutes was she on the expressway returning than going?


The monthly commission for a sales representative is computed using the table above. If a sales representative had sales of $13,000 in June, what was her commission for that month?
A total of $96,000 was invested for one month in a new money market account that paid simple annual interest at the rate of $$r$$ percent. If the investment earned $960 in interest for the month, what is the value of $$r$$?
A box contains 30 marbles of which 6 are red, 7 are blue, 8 are yellow, and the rest are green. Marbles are selected randomly from the box one at a time without replacement. The selection process stops as soon as 2 marbles of different colors have been selected. What is the greatest number of selections that might be needed in order to stop the process?

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