How did tribes gather royalties on coal mining? A. by requiring workers to pay for permits
B. by charging per bushel and ton of coal mined
C. by forcing mining companies to pay for leases
D. by processing and selling coal themselves

entering that problem on the tube you may come up with an answer

c it says nothing about connecting those 2 seas.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation: