Multiplication with Decimals, Word Problem, and Geometry
A rectangular swimming pool is 12 meters long and 6 meters wide. To surround the pool, you want to install a tile border that is 0.5 meters wide along the perimeter of the pool. Each square meter of tile costs $4. How much will it cost to install the tile border around the pool?
(Answer: $76)
13 x 7 - 12 x 6 = 19 x 4 = 76