Select the reasons that the cotton culture expanded westward. western soil was better for agriculture. poor farming methods ruined the soil and forced farmers to move on. there was an increasing demand for cotton. better transportation was available in the west.

The correct answers are B) Poor farming methods ruined the soil and forced farmers to move on and C) There was an increasing demand for cotton.

The reasons that the cotton culture expanded westward were the following: Poor farming methods ruined the soil and forced farmers to move on. and there was an increasing demand for cotton.

The cotton gin -invented by Eli Whitney in 1793- changed the way farmers produced cotton, accelerating its process. Cotton expanded westward and spread south the Mississippi River and arrived in Texas after sugar became the prominent cash crop in the southern lands of Louisiana.

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 % " .