Answer
a. 30
b. 60
c. 13
Work Step by Step
a.
$C=10h+20$
$h=1$
$C=10(1)+20$
$C=10+20$
$C=30$
b.
$C=10h+20$
$h=4$
$C=10(4)+20$
$C=40+20$
$C=60$
c.
$C=10h+20$
$C=150$
$150=10h+20$
$130=10h$
$h=13$
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.