SAT Math Multiple Choice Practice Question 402: Answer and Explanation

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Question: 402

6. If 9b = 81, then =

A. 9
B. 27
C. 81
D. 243
E. 729

Correct Answer: A

Explanation:

A First solve for b. If 9b = 81, then b must equal 9. Insert 9 for b into :

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