The first thing you should do in this case is to take out the area of the patio and the area covered by each brick. Patio area = (15) * (20) = 300 ft ^ 2 Area brick = (1) * (1) = 1ft ^ 2 Then, to get the number of bricks we have: n = (Patio area) / (Area brick) n = (300) / (1) n = 300 Therefore, 300 bricks are needed. This means that the total cost is total cost = (2) * (300) = 600 $ answer Sam will spend if he buys exactly enough tiles to cover his patio $ 600
