Who do you want to win the election TRUMP or biden

According to thomas hobbes concept of the social contract, what do people exchange for the protection by the government?

What form of government is powers of states? first letter of the answer is r.

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.