Write an expression to show : r less than 16

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

Find the interior angle of a regular polygon which has 6 sides

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?