Answer:
The Aztecs built their empire through trade and Warfare
Step-by-step explanation:
The Aztecs expanded their empire through military conquest and sustained it through tributes imposed on the conquered regions. Every 80 days, the new subjects of the Aztecs had to pay tributes to Tenochtitlan. As for the Aztec society, it was very complex. It was socially divided between the nobility and the populace.