If 8 out of 20 students in a class are boys, what percent of the class is made up of girls?

60%

Step-by-step explanation:

8 is 40% of 20, therefore the girls would make up 60% percent of the class.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.