The federal government needed to regulate the settlement of western lands to
a)increase the number of slave states
b)secure the land for native americans
c)raise revenue to pay off its debts
d)prevent european nations from buying the land

C. Raise Revenue to pay off its debts

Explanation:

After the war, the colonies were in millions of dollars of debt with no way to pay it off. They started selling Native American land to pay their debts.

i know number 8 is something about only using 3/5 of the slave votes.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.