What is the primary purpose of a trading bloc?

Iam not here to cheat, i just need to check my answer. how were incan commoners grouped within their social class? a. by gender and age b. by family rank c. by wealth and status d. by religious worship my answer is c. i believe this because slaves are at the bottom of the rank, whilst the emperor is above all.

According to thomas hobbes concept of the social contract what do people exhange for protection by the government ?

Why is james madison significant in regards to the bill of rights?