What did the Maya and the Aztec civilizations have in common?

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The Mayan and Aztec civilizations were both polytheistic in their religious beliefs, and both built pyramid-type structures to their gods. ... Also in their religious life, both Mayan and Aztec cultures believed in and practiced human sacrifice.

Explanation:

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Both the Aztecs and the Mayans were Mesoamerican civilizations with a lot in common. Both civilizations used 365-day calendars with identical day/month symbols and marks. During religious rites, they both worshiped a pantheon of gods, some of which included human sacrifice.

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hr2520 is the patient's act. there is required the secretary of health to summon a committee to develop a national strategic plan of prevention. this committee has forth provisions that make possible for the govern entities to acquire private health insurance services.

is easier to keep this hr2520 as federal, because that way the secretary of health has centralized power to deal with private insurance companies and the federas government has more ways and power to negotiate with them, than doing this process state by state in their specific terms.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69