Sebastian writes the recursive formula f (x+1) = 4f (x) to represent a geometric sequence whose second term is 12.

Which explicit formula can be used to model the same sequence?

f (x) = 12 (4) x

f (x) = 3 (4) x - 1

f (x) = 4 (12) x

f (x) = 4 (3) x - 1

1,000,000,000 divided by 167?

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