Answer
7
Work Step by Step
We know that $a^{0}=1$, as long as $a$ is not 0.
Therefore, $7y^{0}=7\times y^{0}=7\times1=7$.
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.