Question

PARA AGORA PFFFF
a-5(expoente -3)
B-(2/3)(expoente-2)

Answer 1

$( \frac{5}{1} )^{ - 3} = \\ ( \frac{1}{5} )^{3} = \frac{1}{125} \\ \\ ( \frac{2}{3} )^{ - 2} = \\ ( \frac{3}{2} )^{2} = \frac{9}{4}$
Bons estudos! :)