Real Numbers

Name all the sets of numbers to which each real number belongs:

12

Name all the sets of numbers to which each real number belongs:

-15

Name all the sets of numbers to which each real number belongs:

3 1/2

Name all the sets of numbers to which each real number belongs:

3.18

Name all the sets of numbers to which each real number belongs:

9.3

Name all the sets of numbers to which each real number belongs:

-2 7/9