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Maureen wants to put an exercise wheel in her hamster's cage. The height of the cage is 22 inches, but there must be a 1-inch space above and below the wheel to allow for the wheel frame. What is the radius of the largest wheel that Maureen can place in the cage?

(A)5

(B) 2 image

(C) 10

(D) 11

(E) 20

The Correct Answer

Rectangle PQRS lies in the standard (x, y) coordinate plane so that its sides are not parallel to the axes. What is the product of the slopes of all four sides of rectangle PQRS?

(A)-2 (B) -1 (C) 0 (D) 1 (E) 2

Correct Answer: D

For how many integers from 123 to 132 is the tens digit greater than the ones digit?

(A)2 (B) 3 (C) 4 (D) 9 (E) 10

Correct Answer: B

Al bikes a trail to the top of a hill and back down. He bikes up the hill in m minutes, then returns twice as quickly downhill on the same trail. What is the total time, in hours, that Al spends biking up the hill and back down?

(A) (B) (C) (D) (E) 2m

Correct Answer: B

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