Answer
(a) $\$34.99$
(b) $\$64.99$
(c) $\$184.99$
Work Step by Step
Based on the given piece-wise function:
(a) For $x=2$, use the first piece, we have $C(2)=34.99$ dollars
(b) For $x=5$, use the 2nd piece, we have $C(5)=15(5)-10.01=64.99$ dollars
(c) For $x=13$, use the 2nd piece, we have $C(13)=15(13)-10.01=184.99$ dollars
