Sarah wants to paint three walls in her family room. Two walls are 18 feet long by 10 feet
wide. The other wall is 12 feet long by 7 feet wide. What is the total area of the walls Sarah
wants to paint?
First you multiply 18 by 10 for one of the walls you get 180*2 since you have two walls with the same dimension. Next you do 12*7 to get 84. Last you would add 84 to 360 and get 444 ft²