How did tax rates change for top earners in the 1920s

As the marginal tax rate on those high‐income earners was cut sharply from 60 percent or more (to a maximum of 73 percent) to just 25 percent, taxes paid by that group soared from roughly $300 million to $700 million per year. ... The tax cuts allowed the U.S. economy to grow rapidly during the mid‐ and late‐1920s.

Explanation:

the answer is title i subtitle b

after the french-indian war.