Jason jumped off a cliff into the ocean while vacationing with some friends. His height as a function of time could be modeled by the function
h(t)= 16t² + 16t + 480, where t is the time in seconds and h is the height is feet. 

a. How long did it take for Jason to reach his maximum height?
(-b/2a)

b. What was the highest point that Jason reached?

c. Jason hit the water after how many seconds?