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The following figure shows the graph of . Which of the answer choices are the correct amplitude and period of this function?

(F) amplitude = 5, period = π

(G) amplitude = 5, period = 2π

(H) amplitude = 5, period = 4π

(J) amplitude = 10, period = 2π

(K) amplitude = 10, period = 4π

If 2x– y= 32 and 5x+ 3y= 14, then xy=

(A) 35(B) –40(C) 75(D) 100(E) –120

Correct Answer: E

In a Spanish class there are m students, of which n did NOT pass the last exam. Which of the following is a general expression for the fraction of the class that did receive a passing grade?

(F) (G) (H) (J) (K)

Correct Answer: F

Which of the following is the greatest common factor of 60 and 64?

(F) 2(G) 4(H) 6(J) 8(K) 10

Correct Answer: G