PLEASE HELP! can anyone who answers this provide explanations and how to solve each and as well? ;-;

1) 6.32

2)8.66

3)5.74

4)9.49

5)16.55

6)21.21

7)25.98

Step-by-step explanation:

1) 6,7

2) 8,9

3) 5,6

4) 9,10

5) 16,17

6) 21,22

7) 25,26

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.