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Which answer is it for it to be simplified completely?

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

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.