Answer
a.
$5^{3}.5 = 625$
b.
$3^{2}.3^{0} = 9$
c.
$(2^{2})^{3} = 64$
Work Step by Step
a.
$5^{3}.5 = 5^{3+1} = 5^{4} = 5\times5\times5\times5 = 625$
b.
$3^{2}.3^{0} = 3^{2+0} = 3^{2} = 3\times3 = 9$
c.
$(2^{2})^{3} = 2^{2\times3} = 2^{6} = 2\times2\times2\times2\times2\times2 = 64$