It depends on how deep the concrete. 600 sq ft at 6 inch deep is 300 cu ft = 11.1 yards. 12 inch deep is 22,2 yards; 4 inch deep is 5.5 yards
123.44 cubic yards
If the slab is the standard 4" deep, you will need at least 8.89 cubic yards.
none, a hole has nothing in it
A yard (of dirt or concrete) is a volume of 1 cubic yard (1 yd)³, as the cubic is assumed in this context. Assuming a circle 7 feet across (diameter), then the radius is 3.5 feet = 1.16667 yards, and 8 inches = 0.2222 yards. So the volume of this is about 0.95 cubic yards. In concrete jargon it would be 0.95 yards.
That's just about 3.9 cubic yards for every 6 inches deep.
151/9 cubic yards for every 12 inches thick
6 x 2 x 1 = 12 cubic yards
I make it 12.2 cubic yards.
Volume of pit = 9ft * 30ft * 2ft = 540 cubic ft = 540/27 cu yards = 20 cu yards.
A 29 foot by 11 foot by 1 inch depth requires about 1 cubic yard of cement. If the depth is one foot, you will need about 12 cubic yards.
152/(6*6) = 4.22... (recurring) feet.
5 yards
1.16667 yards.
15.3333 yards.
15 yards.
117 yards.