How could this diagram advance scientific thinking?

How did the roaring 20s mark the end of the progressive era? a. mass production reduced wealth disparity and turned public opinion pro business b. labor unions won big legislative gains in workers rights and disbanded c. public officials cut taxes on businesses and reduced spending on services d. america increasing influence in world affairs redirected public attention to foreign policy

Write a supreme court opinion that describes your decision for united states vs abel fields

How did the incas unite the andes mountains?