It depends on the units used for measuring the tiles: 17x17 inches, centimetres etc. As you have not specified this we can not answer your question. When asking questions please take care to include ALL the information we need to answer you.
You would need 450 tiles
256 tiles
178 tiles
You would need a total of 89 tiles (88.88 tiles exactly) with those measurements to cover that area.
It depends on the size of the tiles and also, to some extent, on the shape of the area that you need to cover.
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
You would need a total of 36 tiles to cover that area.
You will need at least 67 tiles. This will cover 150.75 square feet.
you need a total of 507 tiles to cover this square footage area
350.
You will need 288 tiles at minimum.