This is an excerpt from an eighth-grade history textbook: Over 27 million people visited the 1893 Columbian
Exposition in Chicago, at a time when the total U. S.
population was only 65 million. People didn't just come
from all over the United States; they came from all over the
world to see what this young nation was about.
Who is the intended audience of this source?
A. Students in an eighth-grade history class
B. Americans living in the late 1800s
C. People interested in Chicago history
D. Elementary school students

A. Students in an eighth-grade history class

it took two men to wrestle rome back from chaos and turn a republic into an empire. in the first century bc, rome was a republic. power lay in the hands of the senate, elected by roman citizens. but the senators were fighting for power between themselves.

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 % " .