Which phrase describes what the "push and pull" theory was about?

The first sophisticated taxes on citizens took place as a result of which of these?

Iwhich the following is not a characteristic of george washington

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.