Ushma and her friends went to a movie that started at 7:35 P. M. the movie ended at 9:20 P. M. how long was the movie

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

What is the solution of the equation? 35√(x+2)3+3=27

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!