Find the unknown sizes of the angle​

please answer fast

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 =

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.