What political belief created a system of government that balanced power between the central government and individual states while joining the states together as a single nation?

Federalism

Explanation:

The political belief that created a system of government that balanced power between the central government and individual states while joining the states together as a single nation is known as FEDERALISM.

Federalism is a type of government that combined central government otherwise known as the federal government with individual states otherwise known as the regional government to in one political system of government.

the correct answer is “opportunity cost”. opportunity cost is what a company misses out because it decided in one option over another one. in this case, the company decided to invest in building a factory so it gave up another possible benefit or profit in order to achieve success with the factory.  

trade-off is not the correct answer since it is a situation in which you accept losing something in return for benefits in other areas.

and finally, consequence is a general term used to accept what it comes when you make a decision. it can be a positive or negative consequence depending if the decision you took was the correct one.  

they made rome the dominant power in the mediterranean.