Answer
$\frac{1}{125}$
Work Step by Step
We know that $a^{-n}=\frac{1}{a^{n}}$ (as long as $a$ is a nonzero real number and $n$ is an integer).
Therefore, $5^{-3}=\frac{1}{5^{3}}=\frac{1}{125}$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.