Answer:
1) Only one branch of government, inability to pass laws, trouble dealing with foreign countries.
2)The Northwest Ordinance law created the Northwest Territory.
3) In September 1786 Shays starts a protest because he is made because he is mad at the state for taxing him. In November some protesters get arrested, in January 1797 the state seeks help from Congress but Congress doesn't have enough power to help. And in February 1787 the rebellion is finally stopped. From May 25th to September 17, 1787, the Constitutional Convention is held to revise the Articles of Confederation because of Shays Rebellion. Instead, a new constitution is written.