Franchising is a popular way to grow. Subway has about 42,000 franchisees that pay 12.5% of their annual store revenue ($417,000 average) to Subway. About how much does Subway collect in franchise fees?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm