Acatapult launches a boulder with an upward velocity of 112 ft/s. the height of the boulder, h, in feet after t seconds is given by the function h= -16t^2 + 112t + 30 .
how long does it take the boulder to reach its maximum height? what is the boulder’s maximum height? round to the nearest hundredth, if necessary.

a. 7 s; 30 ft
b. 3.5 s; 366 ft
c. 3.5 s; 618 ft
d. 3.5 s; 226 ft