Add 8 and z

I dont know how to do this ​

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

The measure of an angle is 117°. what is the measure of a supplementary angle?