Answer
$g(f(1))=7$.
Work Step by Step
$f(x)=x^2+1$
$g(x)=2x+3$
$g(f(1))=g\left(1^2+1\right)=g(2)=2 \cdot 2+3=7$.
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.