The owner of a small store buys coats for $40.00 each. Answer parts a and b. a. He sells the coats for $72.00 each. What percent of the purchase price is the sale price?

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 =