How did the introduction of the assembly line affect ford's factory workers? (5 points) select one:
a. workers stopped trying to win better wages through unions.
b. workers' jobs became more complex and interesting.
c. workers had easier jobs and shorter hours.
d. workers made less money despite learning new skills.

I believe the answer is: c. Workers had easier jobs and shorter hours,

In the assembly line, a company would separate their workers into different groups and each group is assigned to only produce one certain part of the product

. After that, each groups would collect each parts and combine them into one finished product. This reduce the time needed for production and make workers' job become a lot of easier.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism

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 % " .