Answer
$1/8$
Work Step by Step
$2^{-3}$ (given)
$1/(2^3)$ (since $a^{-1} = 1/a$)
$1/8$
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.