How has the history of voting in America impacted us today in 2020?

Aging populations can be a problem for developed countries because a) there are fewer younger workers coming into the workforce. b) most older workers demand top-level pay and full benefits. c) many older people are skilled in manufacturing, not technology. d) younger workers cannot find jobs when older people work longer.

The civil rights act that passed in 1964

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?