A standing to the edge on the top of a 100-building a vertically upwardThe quadratic below the height above the ground s(n) in feet seconds after it was thrown Complete parts (a) through n(t) = - 16t ^ 2 + 128t + 100

After how many seconds does the ball reach its maximum height? What is the maximum height?

The hall reaches its maximum height of __ feet after __ seconds.