The three fifths compromise was an agreement on how to count slaves for the purposes of taxation and Congressional representation. A slave would count as 3/5 of a person.
The government created under the Articles lacked the power to tax. And the only way it could get money to pay its debts was to ask states to give funds. But states didn't have to or didn't give enough. So all in all the federal government was pretty weak.
Answer:
well if you find out then don't forget to tell me as well please ಠ‿ಠ
Iron production since they can make guns