Five shirts are bought. Of the 5 shirts, there are 3 shirts that cost $15 each. The remaining shirts are $20 each. What is the cost, in dollars, of all 5 shirts?
The first 3 shirts cost 15*3=<T>multiply(15, 3)=45 dollars in total.
There are 5-3=<T>subtract(5, 3)=2 shirts remaining.
The remaining 2 shirts cost 20*2=<T>multiply(20, 2)=40 dollars in total.
The five shirts cost 45+40=<T>add(45, 40)=85 dollars.
