When you a system of equations, how can you tell when they have the same y value

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

Which number completes the inequality? 2/3 < _ < 7/9

Find the values of the variables in the kite