Answer:
125
Step-by-step explanation:
using the rule of exponents
[tex](\frac{a}{b}) ^{-n}[/tex] = [tex](\frac{b}{a}) ^{n}[/tex]
then
[tex](\frac{1}{5}) ^{-3}[/tex]
= [tex](\frac{5}{1}) ^{3}[/tex]
= 5³
= 125
