Think about the changes that early unions wanted. which of these changes were demands made by early unions creating a shorter workday for laborers making sure workers had fair wages forcing companies to provide safe workplaces lowering workers' pay

Considering the available options the changes that were demands made by early unions in the United States are the following:

The official and modern history of the Labour Union in the United States can be traced back to the 1935 enactment of the National Labor Relations Act.

Due to the social and economic impact of the Industrial Revolution era, and the rise of Capitalism which gives employers or business owners to increasingly exploits the workers at the time, the Labor Union(s) had to spring up, demanding better welfare for their members.

Hence, the some of changes or demands made by early unions in the United States are creating a shorter workday for laborers; making sure workers had fair wages; forcing companies to provide safe workplaces, etc.

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john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.