D. freedom of speech Hope this helps
Answer: Try the website History.com, it really will help you.
Explanation:
The Supreme Court decision in Brown v. Board of Education overturned "<span>(A) Plessy v. Ferguson," since it ruled that "separate but equal" was never truly "equal" for African Americans, and therefore was unconstitutional. </span>
The sum of interior angles of a regular polygon is 360—
So add up the angles given and subtract that number from 360—
Answer: 136