Does someone good at math? Pls let me know I have a test tmr I’ll need help

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12