Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 
; r = 
A. a5 = 7776, an = 6n
B. a5 = 6
, an = 6n/2-1
C. a5 = 1296
, an = 6n-1/2
D. a5 = 36
, an = 6n/2
Answer: D
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