Please help me for this question:

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

What is not true about kl and mn? what is mn? (show your work)

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?