14. Marty is a dentist. He is placing an eight-line classified ad for a hygienist. The following piecewis
function gives the price of an x-line ad.
when x ≤5
31
c(x)=
(20+6(x-5) when x>5
a. What is the cost of the first five lines if Marty purchases five lines?
b. What is the cost of the first five lines if Marty purchases more than five lines?
C.
How much less is a six-line ad compared to a five-line ad?
