ANSWER
$28
EXPLANATION
The profit function is given as:

where x is the price of the T-shirt in dollars.
To find the profit on a T-shirt whose price is $15, we substitute x=15 into the function and simplify.

We simplify to get:



Answer:
APPALACHIAN MOUNTAINS
HAVE A BEAUTIFUL DAY
PLEASE MARK THIS ANSWER AS THE BRAINLIEST