What is the total perimeter of this figure in inches?

31.5 in.
45 in.
28.5 in.
42 in.

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32