1.ABCE is a square, and BCDE is a parallelogram.

Quantity A: The area of square ABCE

Quantity B: The area of parallelogram BCDE

(A) Quantity A is greater.

(B) Quantity B is greater.

(C) The two quantities are equal

(D) The relationship cannot be determined from the information given.

答案：C

2. In the figure above, each of the four squares has sides of length x. If △ PQR is formed by joining the centers of three of the squares, what is the perimeter of △ PQR in terms of x?

(A) 2x√2

(B) x√2/2 x

(C) 2x √2

(D) x√2 2

(E) 2x x√2

答案：E

3. In a certain shop, notebooks that normally sell for 59 cents each are on sale at 2 for 99 cents. How much can be saved by purchasing 10 of these notebooks at the sale price?

(A) $0.85

(B) $0.95

(C) $1.10

(D) $1.15

(E) $2.00

答案：B

4. n is an integer.

Quantity A: (-1)^n(-1)^n 2

Quantity B: 1

A. Quantity A is greater.

B. Quantity B is greater.

C. The two quantities are equal

D. The relationship cannot be determined from the information given.

答案：C