An important legacy of the northwest ordinance was that it banned the expansion of this north of the ohio river in the new territories. slavery indian warfare french colonization mining

The correct answer is A). Slavery.

Enacted on July 13, 1787, The Ordinance was an act of the Congress of the Confederation of the U. S. that created the first organized region of the U. S.: the Northwest Territory. The ordinance prohibited slavery and included a fugitive slave clause although there was a servant agreement law that permitted anti-abolitionist to have slaves but could not be bought or sold.

The prohibition of slavery in this region helped to establish the Ohio River as the boundary between abolitionist and anti-abolitionist territories, between the Appalachian Mountains and the Mississippi River.

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 would be a. that is the only one i could think of