When adding 35.64 to a certain number, the sum is 38.24, as seen below. what number should go in the box to complete the addition problem?

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