How do state constitutions control the economy?
a. set trade with other states
c. settle debts with the federal government
b. coin monies
d. decide how to raise and spend taxes

c. settle debts with the federal government 

The Supreme Court is the highest court in the United States. It has limited jurisdiction to decide on a case. It has the right to preside over specific cases. It is also an appeals court for cases involving the constitutional law. The Supreme court can hold a limited review on cases referred up from a lower court. Some of the original cases the supreme court can hear are a crime that takes place under a violation of federal law, international trade disputes, disputes where the United States is involved, and disputes where the individuals involved live in different states. 

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.