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What is the least common multiple of 8, 2, 3a, 6b, and 4ab?

(A)16ab

(B) 24ab

(C) 24a2b

(D) 54ab

(E) 60a2b

The Correct Answer

The percent P of a population that has completed 4 years of college is given by the function P(t) = -0.001t2 + 0.4t where t represents time, in years. What percent of the population have completed four years of college after 20 years, to the nearest tenth?

(F) 0.1 (G) 7.6 (H) 8 (J) 8.4 (K) 160

Correct Answer: G

Factoring the polynomial x12 -9 reveals a number of factors for the expression. Which of these is NOT one of the possible factors?

(F) x6 + 3 (G) x12 - 3 (H) x3 + (J) x3 - (K) x3 -

Correct Answer: K

Sebastian bought a meal at a restaurant and left a 15% tip. With the tip, he paid exactly $35.19. How much did the meal cost without the tip?

(A) $28.98(B) $29.91(C) $30.15(D) $30.60(E) $30.85

Correct Answer: D

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