Geometry help please

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)