During which era did the common man make the most gains toward achieving the american dream of individual rights

Jacksonian Democracy

Explanation:

Andrew Jackson believed that the common man should have the same rights regarded to the elite people. Jacksonian democracy, as became known this period in American History, brought the two-party system and changed the rules in business and banking. Other points of this period can be sum upon these points:

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 % " .