∈ means belongs to
1.) -9 ∈ integer, rational
2.) [tex]\sqrt{144}[/tex] ∈ natural, whole, integer, rational
3.) [tex]\sqrt{35}[/tex] ∈ irrational
4.) [tex]\frac{8}{11}[/tex] ∈ rational
5.) 9.55 ∈ rational
6.) 5.3 repeating ∈ rational
7.) [tex]\frac{20}{5}[/tex] ∈ natural, whole, integer, rational
8.) [tex]\sqrt{44}[/tex] ∈ irrational
