Help me with my homework please!

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer