SOMEONE HELP ME PLEASE ILL GIVE what is the basic difference between Ragtime (Scott Joplin), and Jazz (Jelly Roll Morton)?

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

Which of the following best describes how the maya civilization was governed

Who founded the social contract theory of the government