What was a character of americans companies in the 1920

What happened to the american economy after world war i?

Which examines the impact of napoleon’s territorial conquest on the world?

Which of these marketing methods henry ford sell the model t to many people who had never before owned a car? a) offering free maintenance on cars for a full year b) airing television commercials with memorable slogans c) advertising with the new communication outlets such as radio d) offering many different colors and models for buyers to choose from