What is federalism in the United States? a) It is the relationship between the national government and the state
governments
b) It guarantees our freedoms as a free country
c) It outlines the requirements for a presidential election
d) It outlines what rights the state and local governments have

the population grew a lot and was making more money

workers should be given a fair share of the wealth their work creates

hope this

the correct answer is:   "   3.6 % " .

          →   the unemployment rate is:   " 3.6 % " .

explanation:

to calculate the "unemployment rate" :

the "unemployment rate"   =

  [# of people unemployed] /   [working age population]   * 100 %   ;

                =   [9 million] / [250 million]     *   100 % ;

    →     note:   the units of "million" cancel out;

                    since:   " {million} / {million} = 1 " ;

                =   (9 / 250)   * 100 %   ;

                = 0.036 * 100 % ;

                =   3.6 %

answer:   the unemployment rate is:   " 3.6 % " .