How did the Inca empire expand? Choose four correct answers. by collecting taxes
by having a strong navy
by arranging marriages
by building a system of roads
by having vast natural resources
by practicing religious ceremonies
by creating a strong central government

by building a system of roads by creating a strong central government by practicing religious ceremonies by having vast natural resources.

Explanation:

By collecting taxes.

By arranging marriages

By building a system of roads

by creating a strong central government.

Explanation:

I did the thing at edge. ;)

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live

the governor can not veto a referendum that the voters approve