Answer
a) incorrect
b)correct
c) incorrect
d) incorrect
e) incorrect
f) incorrect
g) incorrect
h) incorrect
Work Step by Step
a) (mn)$^{2}$=m$^{2}$n$^{2}$
b) correct
c) ($\frac{k}{5}$)$^{3}$=$\frac{k^{3}}{5^{3}}$
d) 3$^{0}$y= 1$\times$y =y
e) 4$^{5}$ $\times$ 4$^{2}$ = 4$^{5+2}$ = 4$^{7}$
f) (a$^{2}$)$^{3}$ = a$^{2}$$^{(3)}$ = a$^{6}$
g) cd$^{0}$= c $\times$ 1 =c
h) (2b)$^{4}$=2$^{4}$b$^{4}$=16b$^{4}$
