#### Answer

a. 81
b. $\frac{8}{27}$
c. 0.125

#### Work Step by Step

a. $3^{4}$ = 3 $\times$ 3 $\times$ 3 $\times$ 3 = 81
b. $(\frac{2}{3})^3 = \frac{2}{3} \times \frac{2}{3} \times \frac{2}{3} = \frac{8}{27}$
c. $(0.5)^3 = 0.5 \times 0.5 \times 0.5 = 0.125$