The Hubert H. Humphrey Metrodome in Minneapolis opened in 1982 at a cost of $55 million. To prepare for the footings, et cetera, 3.00x10 5
3.00x105
cubic yards of dirt were removed. The Metrodome's inflatable roof covers 10.0 acres and its interior volume is 60.0x10 3
60.0x103
cubic feet. During construction, 40.0x10 3
40.0x103
cubic yards of concrete, 11.9x10 3
11.9x103
tons of reinforcing steel, and 5.00x10 2
5.00x102
tons of structural steel were utilized. The roof material includes an outer layer of Teflon-coated glass and an inner layer of woven fiberglass. Given this information, answer the following:

Question

The Hubert H. Humphrey Metrodome in Minneapolis opened in 1982 at a cost of $55 million. To prepare for the footings, et cetera, 3.00x10 5 
3.00x105
 cubic yards of dirt were removed. The Metrodome's inflatable roof covers 10.0 acres and its interior volume is 60.0x10 3 
60.0x103
 cubic feet. During construction, 40.0x10 3 
40.0x103
 cubic yards of concrete, 11.9x10 3 
11.9x103
 tons of reinforcing steel, and 5.00x10 2 
5.00x102
 tons of structural steel were utilized. The roof material includes an outer layer of Teflon-coated glass and an inner layer of woven fiberglass. Given this information, answer the following: