It depends on the material that it is made of and so the density of that material.
64 pounds aprox
Assuming the tile is standard 12" x 12" tile without any waste you would need 75 ft. Typically tile needs a waste factor of 10% giving you a final number of 83 tile.
A quarter of one tile (6 ft * 20 ft) will be sufficient!
it is about 35 :)
Total height of wall = Height above the ground + Height below the ground Let us take the height below the ground as X 6 = 4 + X X = 6 - 4 = 2 Height underground is 2 feed
Not sure how exact you neeed to be, but the thickness & the density would be unknowns from your question & they will both impact the answer. A 6X6 wall tile will be less than floor tile & thick tile likely more than thinner. But if you use 8-10 ounces per 6X6 floor tile you will be very close. Add thinset & grout & still more variables crop up. That is if it is really ceramic, travertine, porcelain or Saltillo would all be different too.
64 pounds aprox
It depends on the measurement units used for the tile. 2 tiles of 3 ft x 6 ft will be more than enough.
6 x 24 inch tile = 144 sq in = 1 sq ft 400/1 = 400 tiles
To calculate the weight: Height x Width x Length x 2.5
1
The unit tile is one centimeter by one centimeter. The x tile is one centimeter wide by about 4.5 centimeters long.
Ceramic tiles come in various thickness, a 8 x 12 could be 1/8 if it's a wall tile or as much as 3/8 if a floor tile.
The measurement units for the tiles are not given. Assuming the tiles are 15 cm x 15 cm (the metric equivalent of the old 6" x 6" tile), the area of each tile is 0.2422 sq feet (approx) so that 63 tiles will cover 15.26 sq ft.
Assuming the tile is standard 12" x 12" tile without any waste you would need 75 ft. Typically tile needs a waste factor of 10% giving you a final number of 83 tile.
1/3 x 3/2 = 3/6 Half a square foot
The postage for a 6 x 9 envelope would depend on the weight of it.