If f(x) = x-1 and g(x) = 2x, what is and g(f(x))

Norma has an a-frame cabin. the back is shown below. how many square feet of paint will she need to cover the back of the cabin? explain how you found the answer.

The circumference of a circle is 5 pi cm. what is the area of the circle?

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8