Answer
a. 9
b. $\frac{1}{16}$
c. -25
d. 25
e. -125
f. -125
Work Step by Step
7a
$3^2$
$3\times3$
$9$
7b
$(\frac{1}{2})^4$
$\frac{1*1*1*1}{2*2*2*2}$
$\frac{1}{16}$
7c
$-5^2$
$-25$
7d
$(-5)^2$
$(-5)\times(-5)$
$25$
7e
$-5^3$
$-(5\times5\times5)$
$-125$
7f
$(-5)^3$
$(-5)\times(-5)\times(-5)$
$-125$
