Aball is thrown into the air with an upward velocity of 28 ft/s. its height (h) in feet after t seconds is given by the function h=-16t^2+28t+7. how long does it take the ball to reach its maximum height? what is the ball/s maximum height? round to the nearest hundredth, if necessary. a. 1.75 s; 7 ft b. 0.88 s; 43.75 ft c. 0.88 s; 17.5 ft d. 0.88 s; 19.25 ft