Answer:
Step-by-step explanation:
It depends on how you feel about using pieces of tile.
Your room dimensions in terms of the size of a tile are ...
(12 ft)/(1.5 ft/tile) = 8 tiles
by
(13 ft)/(1.5 ft/tile) = 8 2/3 tiles
Then the area in terms of tiles is ...
(8 tiles)(8 2/3 tiles) = 69 1/3 tile squares
If you use pieces to fill in the places where you need 2/3 of a tile, then you need 7 boxes to get more than 69 1/3 tiles.
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If you don't want to use tile pieces to fill a space, then you will need ...
(8 tiles)(9 tiles) = 72 tile squares
To get that number, you will need 8 boxes of tiles.
