Im boreddd .. anybody else bored

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

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Yvaries inversely as x. y =12 when x=5. find y when x=4