Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:

rectangle with a length of x plus 15 and width of x plus 10 with a rectangle in the bottom right corner labeled bench that has a length of 5 and width of 1

Write an equation to determine the area, A, of the patio that will be painted.

A = (x + 20)(x + 11)
A = (x + 15)(x + 10) + 5
A = (x + 15)(x + 10) − 5
A = (x + 9)(x + 10)