A small pyramid would use an estimated 1 million blocks of limestone. A large one would need 3 million. Both would require a lot of builders. A small pyramid would need 10,000 builders, and a large one would need 30,000. You will need to pay these workers. You will also need to buy water. A small pyramid will need at least 400,000 gallons of water to make. A large pyramid could use over 900,000 gallons.

What are the economic costs of building a small pyramid? Check all that apply.

1 million blocks of limestone
30,000 builders
3 million blocks of limestone
400,000 gallons of water
10,000 builders