Need ASAP what is the answer

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 =

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?