The Olmec were the first civilization in Mesoamerica and their culture influenced many later civilizations. They lived in the tropical lowlands on the Gulf of Mexico. Because the Olmec did not have much writing, we don't know what name the Olmec people gave themselves. The name "Olmec" is a word in the Aztec language that means "the rubber people". The Olmec might have been the first people to figure out how to make things from the sap of the rubber tree. They played a game using balls made from solid rubber which became popular throughout Mesoamerica.

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 % " .

i guess so you did not explain the answer clearly so i can't