List four things that helped the Spanish to defeat the Aztec and Inca Empires. Which of these advantages do you think was most important? Rank the items on your list in order of importance, with number one as most important."

b]to spread the message of black power

he sent troops to protect the students as they entered the school.

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 % " .

hello answer is b i hope that helepd.