4. A decorator is painting this wall of a room. The wall is made up of a semicircle on top of a trapezoid, with a window that measures 1.0 m by 2.0 m is not painted 6.7 m 2.0 m 6.0 m a) What is the area of the wall in square metres (1 m 3.2808 feet) [5A] b) A container of paint can cover 45 square feet. How many containers should the decorator buy? [3A] b) How much will it cost including a 13% tax if one container cost $27.99 [2A]