Using a graph, table of values, and/or equations solve the following problem. When 9 is added to three times a certain number, the result is 29. What is the number?

Round and write your answer to the tenths place value. Do not include units

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 =