If 2^m = 16, what is 3^(m -1)?

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$\text{if}\,\,2^m =16\, \text{then find}\,$

$3^{m-1}$

A81

B27

D15

Answer:

$2^4 = 16$

m=4

$3^{4-1} = 3^3 = 27$

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