How did the mexica people establish their authority over the peoples of central mexico? how did the mexica treat conquered peoples?

Mexica people unite their empire to make a powerful force in Meso America. They became powerful in the 15th century by conquering their immediate neighbors and demanded tribute. They treat their people depending on the tribute system. When there is a tribute given, then they will not hurt them; but if there will be no tribute given, then those people will be killed or even sold to slavery or sacrifice to gods.