So in the 1840's farming required A LOT of people to do work (slavery). How come they didn't need as many people in 1940?

slavery persisted in Delaware, Kentucky, and on the books in 7 of 11 of the former Confederate states, until the Thirteenth Amendment to the United States Constitution abolished slavery throughout the United States on December 6, 1865, ending the distinction between slave and free states.

Explanation:

other then that i don't know

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.