Tom throws a Frisbee into the air from
a height of 4
feet with an initial vertical velocity of 64 feet per second. Use the vertical motion model, h = -16t^{2}
+ vt + s, where v is the initial velocity in feet/second and s is the height in
feet, to calculate the maximum height of the frisbee. Round your answer to the nearest tenth if necessary.

Maximum height: ^{} feet