What did unions want to fix/change about working starting in the 1800s until today?

Organized labor unions in the industrial sector fought for better wages, (their pay check scarcely covered the cost of living) reasonable hours (they often had 12-16 hour shifts) and safer working conditions (the unguarded machinery caused thousands of injuries). These unions helped stop child labor (or at least increased the eligibility age), give health benefits and help those who were injured or retired.

part a. there were 250 teenagers surveyed (100% of tenagers = 250)therefore 1 % = 250/100 = 2.5 76% = 1% x 76 = 2.5 x 76 = 190 teenagers of the 250 surveyed liked burgerspart b: jane surveyed 25% (which is equal to 50 teenagers, i.e. a quarter of the teenagers surveyed is 50) to get 100% we simply get 4 quarters, i.e. multiply 50 by 4 = 200 teenagers were surveyed by jane. part c: it is impossible to give an example where a percentage is greater than 100%, since, by definition , percentage means "per 100".

25. twelve tables

26. having important positions chosen by lot