#### 题目列表

ABCD is a square, as shown above.

#### Quantity A

$\frac{BD+CD}{BD}$

#### Quantity B

2 2x+3y=1

4x-y=2

The respective equations of lines k and m in the xy-plane are shown above.

#### Quantity A

The x-coordinates of the point of intersection of lines k and m

#### Quantity B

The y-coordinates of the point of intersection of lines k and m

The retail price of a certain skirt was x percent greater than its wholesale price, where 20 ≤ x ≤ 80. The discount price of the skirt was x percent less than its retail price.

#### Quantity A

The wholesale price of the skirt

#### Quantity B

The discount price of the skirt

When the positive integer n is divided by 3, the remainder is 1.

#### Quantity A

The remainder when n is divided by 5

#### Quantity B

2

Ted sold two houses. He sold one of the houses for a profit of 20 percent of its purchase price, and he sold the other house for a loss of 20 percent of its purchase price. If the selling price of each house was $192,000, by what amount did the sum of the purchase prices of the two houses exceed$384,000?

If one Corporation R restaurant is to be randomly selected from those in the southeast region, what is the probability that the restaurant selected will be located in a city with a population under 50,000? For the twelve categories in the table, which of the following is closest to the median number of restaurants? To conduct a review, the manager of Corporation R restaurants in the northwest region must form a group of Corporation R restaurants by choosing one restaurant from each of the 3 city population categories in the northwest region. Which of the following represents the number of different groups of restaurants that can possibly be chosen for the review? $2^{-9}$-$2^{-10}$=
If x is the average (arithmetic mean) of 10 and y, and y is the average of x and 22, which of the following statements are true?

Indicate all such statements.
A certain data set consists of n values, and the mean of the values is positive. If an additional value equal to 70 percent of the mean is included in the data set to create a new data set, then the mean of the values in the new data set will be 2 percent less than the mean of the values in the original data set. What is the value of n?

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