Answer: In a group of city-states, each city-state is independent and rules by its own king. No central power controlled all of the city-states. In an empire, consisting of a nation and the city-states and nations it has conquered, one ruler is in control.
Explanation: One has a king in where the other has just a ruler
Here to help! If you were a farmer or a trader, your spot on the hierarchy was rather low. If you were a rich landlord your spot was rather high and you had a lot of money. Hope this helped!!