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题目内容
A certain brand of dishwashing liquid was sold in two different bottle sizes. The small bottle was sold with $$\frac{2}{5}$$ as many ounces of liquid as the large bottle and was sold at a price that was $$\frac{1}{2}$$ the price of the large bottle.

Quantity A

The price per ounce of the liquid in the small bottle

Quantity B

The price per ounce of the liquid in the large bottle

AB=12, AC=30, and AD= 2/5(AC).

Quantity A

The measure of angle BDC

Quantity B

120
Set T consists of the integers from 11 through 100, inclusive.

Quantity A

4 times the number of integers in set T that are multiples of 4

Quantity B

5 times the number of integers in set T that are multiples of 5

Quantity A

The area of a triangular region with perimeter 8

Quantity B

8
List L consists of 7 numbers. The range of the numbers in list L is 0.

Quantity A

The average (arithmetic mean) of the numbers in list L

Quantity B

0
s=|t-2|

Quantity A

s+2

Quantity B

|t|
Survery* of preferred method to obtain news, by age-group

*Each person surveyed indicated one of the four methods as his or her preferred method to obtain news.
What fraction of the people in the age-group 20 to 49 indicated newspaper or the Internet as their preferred method to obtain news?

Give your answer as a fraction.
Which of the following is closest to the percent of all the people survey who indicated the Internet as their preferred method to obtain news?
For the age-group 50 and older, the number of people who indicated the Internet as their preferred method to obtain news is approximately what percent less than the number of people who indicated radio?
When the positive integer x is divided by 42, the remainder is 9. What is the remainder when x is divided by 7?
If x is 4 more than half of y and if y is 10 more than half of x, what is the value of x?
A pianist agreed to perform one concert at a fee 12.5 percent less than her usual fee and a second concert at a fee 20 percent greater than the first fee. The fee for the second concert was what percent greater than her usual fee?

The table shows the number of pages in each of 5 textbooks. What is the greatest possible value of x for which the average (arithmetic mean) number of pages of the 5 textbooks is equal to the median number of pages of the 5 textbooks?
For the 500 measurements obtained in experiment X, the average (arithmetic mean) value is 280 and the value k is at the 75th percentile. For the 500 measurements obtained in experiment Y, the average value is 280 and the value n is at the 75th percentile.

Quantity A: k
Quantity B: n
x - y =5

Quantity A

$$x^{2} - y^{2}$$

Quantity B

5
$$f(x)=4x^{2}+28x+49$$ for all $$x$$.

Quantity A

The number $$b$$ such that $$f(b)$$ is the minimum value of $$f$$

Quantity B

$$-3$$

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