What are the total number of cubic yards to come out of an excavation for a basement that measures 30′ x 30′ x 7′ deep. You should excavate beyond the building lines 3 feet in each direction to allow for setting forms. Do not allow for any swell of the m

What are the total number of cubic yards to come out of an excavation for a basement that measures 30′ x 30′ x 7′ deep. You should excavate beyond the building lines 3 feet in each direction to allow for setting forms. Do not allow for any swell of the m