What led up to the Treaty of
Greenville and how did if affect the
Northwest Territory?

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.