What is the main idea of this excerpt from an article in the U. S. Constitution? A. The Constitution creates Congress and establishes rules for how
senators and representatives are to be elected.
B. The Constitution gives the president the power to select senators
and representatives to serve in Congress.
C. The Constitution establishes the executive branch as the most
powerful branch of government.
D. The Constitution creates the office of the president and
establishes rules for how the president is to be elected.

norsemen from northern countries had made earlier journeys

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 % " .

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization