The triangle trade shipped goods from Europe to Africa, slaves from Africa to the Caribbean Islands, and goods from the Caribbean Islands to Choose...

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Spain
England
Italy

The triangle trade shipped goods from Europe to Africa, slaves from Africa to the Caribbean Islands, and goods from the Caribbean Islands to England

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.

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 % " .