Which equation represents the graph?

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?