Asurvey of one class at pioneer middle school found that 20 out of 30 students would spend $12 for a school t-shirt suppose there are 600 students in the school how many students do you predict would spend $12 for a school t-shirt

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 =