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.
You will need 0.56 cubic yards of concrete.
.99 yds
40.1 cubic yards
Approx 64 cubic yards.
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
3880 cubic yards
123.44 cubic yards
about 5 yards if your slab is 4" deep
1.19 Cubic Yards
You will need 1.36 cubic yards of cement.
2.2 Yards
If the slab is the standard 4" deep, you will need at least 8.89 cubic yards.