The early decades of the 1900s saw a steady rise in union membership numbers. however, since hitting a peak in the early 1950s, union membership in the united states has significantly declined. what is one of the related effects of this decrease in union membership?

One of the related impacts of this abatement in union participation is a consistent increment in the pay hole amongst rich and poor 
The early many years of the 1900s saw an enduring ascent in union participation numbers. Nonetheless, since hitting a crest in the mid 1950s, union enrollment in the United States has fundamentally declined.

a steady increase in the income gap between rich and poor

Explanation:

It is already simplified because there is nothing you can divide into both 18 and 25 that would result in whole numbers.