Answer:
-85
Explanation:
Given the mathematical expression:

First, we recall the product of signs.

So, first, we open the bracket:

We then simplify:

The result is -85.
The width of the court is 30 feet!
A) 60q/12
b) set ^ this equation equal to the one on the paper, move the variable to one side, and the rest should be easy from there
c) he loses profits
12. 37, 370, 10^2
13. 20.4, 10^2, 2040
15. 1000*1.75=1750
Hope it helped!