24
If you buy 18 boxes you will have enough, plus a few extra. 18 boxes will cover just over 434 square feet.
26 square feet.
The area of a hole 4 feet in diameter and 19 feet deep is: 76 square feet. (4 x 19 = 76).
187 sq feet
180 square feet will fit a room 12 x 15.
figure it out yourself
This question is incomplete.
A shelf measuring 2 feet by 3 feet has a surface area of 6 square feet. Each of your boxes is 1 foot by 1 foot (12 inches x 12 inches). You can fit only 6 boxes onto your shelf in a single layer.
If you buy 18 boxes you will have enough, plus a few extra. 18 boxes will cover just over 434 square feet.
About five (4.975) such boxes.
Six square feet.
15 x 14 is 210 square feet. If one box is 45 square feet, you'll need 5 boxes.
The number of boxes required is575/number of square feet covered by the tiles in one box .
26 square feet.
It depends on the size of the boxes. If the boxes are one square foot, then you need 1400 of them. This obviously differs with box size.
The area of a hole 4 feet in diameter and 19 feet deep is: 76 square feet. (4 x 19 = 76).
187 sq feet