1.how did the automobile change american life?
2.what factors contributed to the economic boom during the coolidge presidency? 3.what were calvin coolidge's beliefs on the size and role of government?

1. The automobile was an affordable way for Americans to travel. Many Americans had automobiles before the had a proper toilet. 2. The economic "boom" was called the Roaring Twenties. The contributing factors were automobiles, movies, etc. 3. President Coolidge believed in Federalism.

I hope that I got that right. :)