Manny is repairing a window air conditioning unit on the 11th floor of a building and is approximately 98 off the ground. While
working, Manny drops his screwdriver. The height (h) of the screwdriver in feet after t secounds of falling from the 11th floor is modeled by the function h= -16^2 + 98. How long will it take for the screwdriver to reach the ground? Round to the nearest tenth if neccesary.