PLEASE HELP ASAP!!!!!!
A person standing close to the edge on top of a 56-foot building throws a ball vertically upward. The quadratic function h = − 16 t^2 + 104 t + 56 models the ball's height above the ground, h , in feet, t seconds after it was thrown.
a) What is the maximum height of the ball? __________ feet
b) How many seconds does it take until the ball hits the ground? ___________ seconds
