Which numbers represents a repeating decimal -2/5, -7, 3/9, 11/12

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

Which expression is equivalent to -5(3x - 6/7)

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd