13. a catapult launches a boulder with an upward velocity of 148 ft/s. the height of the boulder (h) in feet after t seconds is given by the function h = –16t² + 148t + 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) 9.25 s; 30 ft
b) 4.63 s; 640.5 ft
c) 4.63 s; 1,056.75 ft
d) 4.63 s; 372.25 ft

16. solve the equation using the zero product property.
(2x – 4)(2x – 1) = 0
a) 2, –1over2
b) 2, 1over2
c) –2, 2
d) –2, 1over2