549!
Since a 12x12 tile is one square foot, then 38 12x12 tiles will cover 38 square feet.
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
68
14
190
1540
650
Well if 12x12 is one square foot and you have 44 you need to cover figure 10% for breakage (5 tiles) it looks like 50 tiles will do ya
192 tiles
Two tiles of size 12 ft x 12 ft will cover 288 square feet and so should be sufficient.
A 12x12 tile is 1 sq foot, so you will need 198 tiles.