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:



Length of PS= 3.99 units
Length of QS=2.08 units
Area of triangle PQR=14.12units²
A = (1/2)bh
64 = (1/2)(8)h
16 = h
The height is 16 inches
Answer: $603,213
Step-by-step explanation: