Roses are $2.50 each and lilies are $1.25 each. ellis spent $28.75 for 15 of the flowers. how many of each type of flower did he buy?

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 =