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:
B.10
Step-by-step explanation:
15=1/2b(3)
30=3b
10= base
One $10 bill, Two $1 bills, Two Quarters, Two Nickels
Two $5 bills, Two $1 bills, Two Quarters, Two Nickles
One $10 bill, One $1 bill, Six Quarters, Two Nickles
Please find the attached image
3750(0.20)=$750
1/5 as a percent is 20% and as a fraction it is 0.20