Five of the thirteen states voted for ratification of the constitution only after

Five state conventions voted to approve the Constitution almost immediately (December 1787 to January 1788) and in all of them the vote was unanimous (Delaware, New Jersey, Georgia) or lopsided (Pennsylvania, Connecticut)

Explanation:

they where assured that a bill of rights would be added after the ratification

Explanation:

it refers to race, i am pretty sure this was a popular term in nazi germany or something.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."