The _____ Plan, favored by _____ States, proposed giving States equal representation in a unicameral Congress.

Answer 1

Lots of blanks there with absolutely no clue what you're studying.

Since it says "unicameral," it's not referring the the US.

Answer 2

This doesn't look like an economics question to me.

http://en.wikipedia.org/wiki/History_of_the_United_States_House_of_Representatives