Arectangular room measures 12 feet by 15 feet. the entire room is to be covered with rectangular titles that measure 3 inches by 2 inches. if the tiles are sold at 10 for 1.20 what will be the cost to tile the room?

Each tile is 3 in. × 2 in. = ft × ft
The area of a tile is ft²

The area of the room is 12*15=180 ft²

The number of tiles is 180÷=180*24=4320

which is 432 sets of 10 tiles.

The total cost is $1.20/set * 432 sets = $518.40