Answer
a) $2*3^0$
b) $2*3^1$
c) $2*3^2$
d) $2*3^3$
Work Step by Step
a) $2=2*3^0 = 2*1$
b) $6 =2*3 = 2*3^1$
c) $18 =2*3*3 = 2*3^2$
d) $54 =2*3*3*3 = 2*3^3$
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