At low altitudes the altitude of a parachutist and time in the air are linearly related. A jump at 3,080 feet lasts 110 seconds. (A) Find a linear model relating altitude a (in feet) and time in the air t (in seconds). (B) Find the rate of change of the parachutist in the air. (C) Find the speed of the parachutist at landing. (A) Find a linear model relating altitude a (in feet) and time in the air t (in seconds). a (B) Find the rate of change of the parachutist in the air. feet/sec n (C) Find the speed of the parachutist at landing. feet/sec