Which of the following u. s. supreme court decisions made this image from an american classroom possible throughout the nation?

image showing children of different races in the same classroom.

© 2011 ap images

plessy v. ferguson
marbury v. madison
brown v. board of education
texas v. johnson

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

whose power in the senate is equal to the power of the speaker of the house?