In how many ways can a committee of size 4 be formed from 8 people? assume that, when people are chosen for a committee, the order of the choice does not matter

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown