6Under the rules of the Missouri Compromise, what had to happen every time a slave state joined the Union?
A. A free state also had to be admitted to the Union.
B. The voters in the state had to decide whether the slaves there would eventually be freed.
C. The Supreme Court would have to decide whether slavery was legal.
D. The President of the United States had to open up new free territories.

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

***websites that me understand the curriculum better last year are and ***