Solve the Problem. -A Flare Is Fired from the Bottom of a Gorge

Multiple Choice

Solve the problem.
-A flare is fired from the bottom of a gorge with an initial velocity of 80 feet per second, and it is visible only when the flare is above the rim. The height of the flare, in feet, after t seconds is given
By the function h(t) = -16t2 + 80t. If the gorge is 96 feet deep, for what length of time can the flare
Be seen?

A) 0 sec to 2 sec
B) 4 sec to 5 sec
C) 6 sec to 7 sec
D) 2 sec to 3 sec