Camille is attending a fundraiser. She pays for her admission and buys raffle tickets for
$
5
$5dollar sign, 5 each. If she buys
10
1010 raffle tickets, then she would spend a total of
$
135
$135dollar sign, 135 at the fundraiser.
The number
S
SS of dollars Camille spends at the fundraiser is a function of
r
rr, the number of raffle tickets she buys.
Write the function's formula.
S
=