if f(x)=4x^2 and g(x)=5 what is g(f (2x) ) ?

Which of the following is true for the relation f(x)=2x^2+1

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.