True or false: The former Western Roman empire became the byzantine empire

An alliance of two political parties is know as? a. majority b. coalition c. candidate d. government

How did the supreme court decision in the slaughterhouse cause have an affect american business

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.