3. If an object is projected upward into the air from ground level, then the height h(t) of the object in feet at time t in seconds is given by:
h(t) =-167 + 136t
At what times will the ball be 240 feet from the ground? Please write your answer in a complete sentence.
SHOW ALL WORK - do not skip steps. The show all work part cannot be stressed enough. (10 points)