Answer
$0.95$
Mailing a $3.5$ ounce first-class letter costs ${{\$}} 0.95$
Work Step by Step
The point $(3.5, 0.95)$ lies on the graph, so $f(3.5)=0.95$
Mailing a $3.5$ ounce first-class letter costs ${{\$}} 0.95$
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.