2. Maverick wants to paint ten (10) square signs like the one shown below. Each sign needs two coats of paint for each colour. Answer the following questions. 15 in. 8 in. 8 in. a. What is the total surface area that will be painted black? b. What is the total surface area that will be painted in grey? c. The black and grey paint is only sold in paint tubes. Each tube can paint 864 square inches. What is the total number of black and grey paint tubes does Maverick need for this paint project?