Mao Zedong used propaganda during the Cultural Revolution to People says many different answers, which ones correct?

The system of checks and balances ensures that

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b.the united states should end slavery. c.the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii

Which of the following did the maya, aztec, and inca all have in common