How can i measure the square footage of an apartment?

Me answer number 3plz explain how you do it

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 g^-1(x) is the inverse of g (x) which statement must be true