80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
A 12x12 tile is 1 sq foot, so you will need 198 tiles.
You need 0.52, so about a half.because a single 12x12 tile has an area of 144.
123 will cover it. Get extras.
A 12x12 inch tile covers a square foot. You would need 198 plus spoilage and grout lines.
The tile is bigger than the area that you want to cover (12x12 > 10x11) so one tile will do. <><><><><> However, if you meant 12x12 INCH tiles, and a 10x11 FOOT room, you would need 110 tiles.