Final answer:
The Aztecs built their powerful and wealthy empire by conquering other tribes, making alliances, and accumulating wealth through trade. They controlled a vast empire with millions of people.
Step-by-step explanation:
The Aztecs built a powerful and wealthy empire by militarily conquering other tribes and making alliances. They formed alliances with some groups while subjugating others through tax, tribute, and sacrificial victims. The Aztecs also accumulated wealth through trade and controlled a vast empire that included millions of people.
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