Depends how big the tiles are!
180
you need to know how wide the floor is in addition to how long. Number of tiles is lenght x width
64
64
Assuming the tiles are 1 foot squares, you would need 10*15 = 150 tiles.
240 square tiles are needed
180
Floor area = 12 ft x 18 ft = 216 square feet. There are 4 six-inch square tiles needed for each square foot, so 864 tiles are needed.
you need to know how wide the floor is in addition to how long. Number of tiles is lenght x width
64
64
It should take about 825 1 foot square tiles to cover a floor with those dimensions. This assumes roughly a 10% waste factor.
120 tiles because the area of the floor is 30 square feet. If you can fit four tiles into one square foot then you could fit 120 tiles in 60 square feet.
640
17*12 = 204 tiles.
The area around the sink would take two rows of four tiles each, so that is 8 tiles which will NOT be needed. The whole floor would take twelve rows of fourteen tiles = 12 x 14 = 168. So, if we take away the 8 tiles which won't be needed we are left with 160 tiles.
Assuming the tiles are 1 foot squares, you would need 10*15 = 150 tiles.