The Yuan Dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with India and South East Asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over China. a. i & iii c. iv only b. ii only d. all of the above

where is the

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 % " .

it provided for equal trade rights among nations in china.