2400 * 24 square units. However, since the measurement units are not specified, it is not possible to convert this to square feet.
Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
Two tiles will suffice since they will cover 36 square feet.
Since a 12x12 tile is one square foot, then 38 12x12 tiles will cover 38 square feet.
start with 38 tiles.
500/1.78 = 281 tiles
Each tile covers 4 square feet. You will need 24.75 tiles to cover the area.
157 18 by 18 tiles are needed to cover 352 square feet.
You will need at least 67 tiles. This will cover 150.75 square feet.