What method of dating bone would yield the most accurate results

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

How was the creation of parliament a step toward the creation of democracy in england? [ 15 points ]

How did the incas unite the andes mountains?