Need help with these pls!! Due at 1pm (write has an equation)

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

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

(x-5)1/2+5=2 what is a possible solution?