Answer
$Q=7(e^{-10})^t$
Work Step by Step
Use the fact that $(a^m)^n=a^{mn}$ to rewrite the equation as $$Q=7(e^{-10})^t$$
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.