The least common multiple would be 240.
120(2)=240 AND
80(3)=240
I think the answer would be d(greater than or equal to) -28
It hits the ground at h=0
0=-16t^2-16t+96
undistribute -16
0=-16(t^2+t-6)
factor
0=-16(t-2)(t+3)
set to zero
0=t-2
2=t
t+3=0
t=-3, nope, we can't have negative time
at t=2, or 2 seconds
The awnser is 729 Bc 81 times 9 equals 729
