Which equation represents a line which is parallel to the x-axis? x=1/4y x=3y x=4 x=-4

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?

Find the measure of anglec in the following triangle

Angle m aoc=108° m aob=3x+4° m boc=8x-28° find m aob