Answer
$2$
Work Step by Step
We know that $log_a {a^x}=x$. Hence $log_3 {9}=log_3 {3^2}=2.$
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.