When you add fractions does the denominator change

Which technological breakthrough of the 1950s revolutionized the way that americans kept up with news and world events? a) radio b) internet c) television d) motion pictures

Where do buyers and sellers go to exchange a specific product

Considering "civil disobedience," which best describes how thoreau and martin luther king, jr. both felt about acts of civil disobedience? a. they both believed that acts of peaceful political protest would not affect or alter the law. b. they both believed that people should go against certain laws because government is a flawed concept. c. they both believed that individuals have the right and the responsibility to protest unjust laws. d. they both believed that breaking the law is an unjust action that deserves punishment. answer is c.