Answer Choices,
-6.75
-2.3125
9.35
11

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 shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

State one method by which you can recognize a perfect square trinomial.