(10 a local newspaper charges by the
character for its classified ads. letters,
numbers, spaces, and punctuation each
count as one character. they charge
$46 for the first 200 characters and
$0.15 for each additional character.
a. if x represents the number of
characters in the ad, express the cost
c(x) of an ad as a piecewise function.
b. graph the function from part a.
c. find the coordinates of the cusp in
the graph in part b.