Write a recursion formula for the sequence.7, 42, 252, 1512, . . .
A. an = 6an-1, a1 = 7
B. an = an-1 + 12, a1 = 7
C. an = an-1 + 6, a1 = 7
D. an = 12an-1, a1 = 7
Answer: A
Mathematics
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A. 4 
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A. 2.7 ft B. 33.1 ft C. 0.2 ft D. 24.3 ft
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Simplify the complex rational expression using Method I or Method II.
A. -1
B. 
C. 0
D. -6
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Divide using the division properties.0 ÷ 19
A. 0 B. 1 C. undefined D. 19
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