A flare is launched from a life raft. The height h of the flare in feet above the sea is modeled by the formula h = 100t – 16t2, where t is the time in seconds after the flare is launched. 13. At what height is the flare when it returns to the sea? 14. Let h = 0 in the equation h = 100t – 16t2 and solve for t.
15. How many seconds will it take for the flare to return to the sea? Explain your reasoning.​