Less than 1/2 yard pre-mix.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
about 17 yards of concrete (it's sold by the cubic yard)
9x12 feet at 4 inches deep: 1.3 cubic yards.
The number of concrete blocks that make up a foot depends on the size of the blocks. Standard concrete blocks, often referred to as cinder blocks, typically measure 16 inches long, 8 inches high, and 8 inches deep. To cover a linear foot, you would need about 0.75 of a standard 16-inch block to reach a total of one foot in length.
12 x 12 feet, 4 inches deep: 1.8 cubic yards, minimum.
128
0.246914 cu. yards (6.666667 cu. ft ) of concrete is needed.
about 432 cubic inches
54sqare feet
you will need about 4 cuyds for your project.
you would need 37.33 yards of concrete or 38 to be safe
(60 x 1.5 x 13/12) / 27 = 3.61 cubic yards
1.54321 cubic yards See the related link below
131,328 in3, but you should have worked it out for yourself.
You will need about 0.8 cubic yards - 1 cubic yard is a safe bet.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
12.30 cubic yards