Need help with 9th grade himan gepgraphy question

Which landmark supreme court case ruled that segregation by race in public education was unconstitutional? a.miranda v. arizona b.plessy v. ferguson c.brown v. board of education of topeka d.alexander v. holmes county board of education

Which letter correctly labels the mississippi river? a b c labeled map of the mississippi river and surrounding regions.

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control