Pls help getting graded today

Mesopotamians used the plow to make their farmland more productive. which of the following was necessary for the use of the plow? a. the domestication of oxen b. the creation of government c. the invention of writing d. the establishment of cities

What is a country called that is technically independant but is controlled by another country

The federal reserve is responsible for overseeing all a. income tax refunds b. changes in tax policies c. government spending d. depository institutions