Answer:
because there isnt any full circles. in order to have a square you need 4 corners .they all only have 1 inside that circle.
We simply substitute 6 into the equation:
f(6) = -2(6 - 4)² + 22
f(6) = 14
The company's profit is 14 thousand dollars
hope it helped :).
I believe u can put 5 books on there