six of them
18"x18" is 1.5'x1.5' = 2.25 square feet. 1020 sq feet @ 2.25 sq ft per tile = 453.33... tiles. So you would need a minimum of 454 tiles. In real life, though, it would also depend on the shape of the area to be covered. This will determine how many tiles need to be cut, whether or not the offcuts can be used or are waste, etc.
24'x18'x21' is 9,072 cubic feet which converts to 67,863.27 US gallons.
There are many places where one can purchase a X18 Pocket Bike. One can purchase an X18 Pocket Bike at popular on the web sources such as USA Pocket Bikes and Mini Pocket Rockets.
324 sqft
√x19 = (√x18)(√x) = x9√xBecause:√x18 = x18/2 = x9
18"x18"/144 sq inches per sq ft = 2.25 sq ft per tile for 18x18 tiles 900 sq ft / 2.25 sqft/tile = 400 tiles +10% for waste and cuts = 440 tiles
18 x18 is 1.5 ft x 1.5 ft = 2.25 sq ft it depends exactly how they are laid out and how much cutting you do but the absoulute minimum amount of tiles will be 272 / 2.25 tiles = 120.8 tiles so you will need at least 121 tiles. However this would involve a lot of cutting. depends on the actual dimensions of your floor/wall i would suggest you buy 140 tiles as this will cover an area of at least 21 ft by 15ft = 315 ft. It does however depend on the dimensions but 140 tiles seems the right amount
2.25 ft2
324
360
yes x18 super bikes are able to be driven on the highway but you have to work it out with the dmv first