Help its urgent and i dont understand

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

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

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?