Final answer:
The Inca Empire used their road system and military as effective means for achieving control. The economic system was based on trade and labor, and the empire was held together through centralized authority and cultural assimilation.
Step-by-step explanation:
The Inca Empire, which spanned from modern Colombia to southern Chile, had various means for achieving control. One of the most effective means was their road system, which allowed for efficient communication and transportation throughout the empire. Another effective method was the Inca military, which honed their skills through conquests and wars.
The economic system of the Inca empire was based on trade and labor. People provided their labor in exchange for food and goods, and there were no monetary taxes. The Sapa Inca was the ruler of the empire and held significant power.
The Inca empire was held together through a combination of centralized authority, military control, and cultural assimilation. The Sapa Inca's rule and the administration of different regions helped maintain unity in the empire.