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The trapezoid below is divided into 2 triangles and 1 rectangle. Lengths are given in centimeters. What is the combined area, in square centimeters, of the 2 shaded triangles?

(A)18

(B) 12

(C) 9

(D) 6

(E) 4

The Correct Answer

The ratio of three sides of a triangle is 16:19:28. If the length of the short side of a similar triangle is 20, what is the length of the longest side of the similar triangle?

(A)29 (B)31 (C)32 (D)33 (E)35

Correct Answer: E

The number of fish, p, a small pond can sustain varies inversely with the square root of the amount of predators, q, in the pond. If a pond with 49 predators can sustain a population of 800 fish, how many fish could a pond with 100 predators sustain?

(A)560 (B) 600 (C) 650 (D) 1,600 (E) 2,000

Correct Answer: A

Which of the following expressions represents the product xy, if x = 4a3 and y = -3a5 + b?

(A)a3 + b (B) a5 + b (C) -12a8 + 4a3b (D) -12a15 + 4a3b (E) -243a15 + 4a3b

Correct Answer: C

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