How many states needed to ratify an amendment?

Draw conclusions  why might a cause like italian unification successfully draw people of very different backgrounds together?  

How has u.s. participation in international economic development efforts affected other countries? o a. it has made some countries decide they no longer want close ties with the united states. b. it has ended diplomatic ties with countries that refuse to participate. c. it has raised money to poor nations grow their economies. d. it has caused the united states to intervene militarily to stop human rights abuses.

What was different about religious practices in pennsylvania and massachusetts