Which of the following were aspects of the rule of moctezuma i over the aztecs? human sacrifice and expansion of the empire human sacrifice and conquest of the mayans expansion of the empire and the discovery of gold conquest of the mayans and the discovery of gold

Human sacrifice and expansion was the answer because the Aztecs were a feared tribe and conquered many people.  They had always practiced human sacrifice and that was one of the reasons that Hernan Cortes had been horrified about.  It couldn't have been anything about conquering Mayans because their civilization had died out for some strange reason.

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160