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Which of the following is (are) equivalent to the mathematical operation a(b - c) for all real numbers a, b, and c? I. ca - ba II. ab - ac III. (b - c)a

(A)II only

(B) I and II only

(C) I and III only

(D) II and III only

(E) I, II and III

The Correct Answer

Line T intersects parallel lines m and n. Angle measures are as shown in the figure below. What is the degree measure of imagea? image

(A)10° (B) 80° (C) 90° (D) 100° (E) 110°

Correct Answer: D

For all

(A) (B) (C) (D) x - 3 (E)

Correct Answer: B

Jane wants to bring her bowling average up to an 85 with her performance on her next game. So far she has bowled 5 out of 7 equally weighted games, and she has an average score of 83. What must her score on her next game be in order to reach her goal?

(A)83 (B) 85 (C) 90 (D) 93 (E) 95

Correct Answer: E

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