Name one thing that African Americans in the Civil War did?

African Americans fought in every major campaign and naval battle of the Civil War. They served in the blockading squadrons on the South and Gulf Coasts and in the brown-water navy in the tributaries in the South. African American women served also, most as nurses aboard the USS Red Rover (1859), a hospital ship on the Mississippi River.

the main reason the us senate rejected the treaty of versailles was because "european nations wanted to punish germany"

d(:

me and mark as brainliest.

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 % " .