Please help 3. What were the key differences between the Greek city-states Athens and Sparta? Which is regarded as one of the founding civilizations to use democratic values in government? 4. What led to the transition of Rome from a Republic to an Empire?lm

I think I got it.  (3)

Explanation:

(3) The key difference between Athens and Sparta is their government system. While Athens was a democracy, Sparta was a dictatorship; the second (?) is answered there (Athens).

Sparta was ruled by two kings, who ruled until they died or were forced out of office. Athens was ruled by archons, who were elected annually. Thus, because both parts of Athens' government had leaders who were elected

Explanation:

federal power is further limited with a system of checks and balances that gives each branch of government a measure of power over the others.

explanation:

four sitting presidents have been assassinated while in office but the first was abraham lincoln,