Gerald purchases a rectangle plot of land. The length of the plot is 20 feet more than the width. Gerald also had a fence put around the entire perimeter of the plot, at a cost of $8 per linear foot. The total amount he spent on both the land and the fence was $10,560. Part B: Write an equation in one variable that can be used to find the width, X feet, of the plot. Express the equation in the form ax^2+bx+c. Provide evidence to support your answer. Write the equation below in simplest form.