The missouri compromise established which as a precedent? a adding slave and free states equally to keep the balance of power. b using popular sovereignty as the deciding factor on the legality of slavery. c promoting the expansion of slavery to support the south. d applying its compromise decision to all territories and future states.

The answer is A. Adding slave and free states equally to keep the balance of power.

Hope this helped!

( sorry my answer is short they wont let me do just war so ignore this) xd

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.