16
54 4x4-inch tiles.
Eight
If 12x12 is 144... There would be 144 tiles in a box right?
4*11=44 44 tiles
There are 9 (4X4) tiles in one square foot and you have 25 sq feet. Multiply 25 by 9 and the answer is 225.
270
16
54 4x4-inch tiles.
Assuming it's a 4x4 wall, 64 tiles
If 10 tiles are already in one box, then there are 246 tiles remaining.If the 10 tiles fill the first box, then in order to box up all of the remaining tiles,you need 25 more boxes of the same size. (24 of them will be full. One won't.)
1080 will be your answer
Eight
If 12x12 is 144... There would be 144 tiles in a box right?
4*11=44 44 tiles
You can fit nine 4x4 tiles in one squre foot (3 tiles wide by 3 tiles long). 56 square feet times 9 = 504. Add about 10% for cutting a/o waste (50 tiles) and you should buy around 550 tiles to complete the job. Good luck.
You need 27 Box of 9 tiles