A baseball is thrown from the top of a building and falls to the ground below. The height of the baseball above the ground is ap
proximated by the relation h = -5t2 + 10t + 15, where h is the height above the ground in metres and t is the elapsed time in seconds. Determine the maximum height that is reached by the ball.
if pete placed in the 73rd percentile, this means that his score was better than 73% of the other test takers, so the fourth option: he scored more than about 73% of the test takers