400 of course !
76.6 tiles
67 tiles.
Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
49 tiles
157 18 by 18 tiles are needed to cover 352 square feet.
76.6 tiles
67 tiles.
Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
49 tiles
Each tile covers 81 square inches. You have 1,296 square inches to cover. It will take 16 tiles to cover that area.
start with 38 tiles.
2500 tiles
192 tiles
157 18 by 18 tiles are needed to cover 352 square feet.
5,184 2-square-inch tiles are needed.
Two tiles will suffice since they will cover 36 square feet.
18 10x10-inch tiles.