Help me please (20 characters)

For which rational expression is -2 an excluded value of x?

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

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.