Please help #7 STATEMENTS AND REASONS

Which of the following describes the symmetry of the graph of y = x3?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0