Find all values of t for which the rocket's height is 34 feet

A model rocket is launched with an Initial upward velocity of 105 ft/s. The rocket's height h (In feet) after t seconds Is given by the following. h=105t-16t Find all values of t for which the rocket's height is 34 feet. Round your answer(s) to the nearest hundredth. (If there is more than one answer, use the "or" button.) t = seconds or h X ? ground