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Which of the following is equivalent to (x4 - 4)(x4 + 4)?

(F) 2x4

(G) x8 - 16

(H) x8 + 16

(J) x16 - 16

(K) x8 - 8x4 - 16

The Correct Answer
Explanation

The solution set of 5x + 9 ≥ 2(3x + 4) + 7 is shown by which of the following number line graphs?

(A) (B) (C) (D) (E)

Correct Answer: A

Carol worked one summer and earned money that she spent on new clothes. After spending 65% of her money, Carol had $875 left. How much money did Carol earn for the summer?

(A)$1,625 (B) $2,500 (C) $3,375 (D) $4,125 (E) $7,375

Correct Answer: B

For all x > 8, = ?

(F) (G) (H) (J) (K) 1

Correct Answer: K

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