Which set includes both -$\sqrt{9}$ and $\frac{1}{4}$ as its elements?

The union of rational and irrational numbers is called complex numbers.

Which set includes $\sqrt{11}$ and π?

What set encompasses numbers like 5/2 and -3.25?

 Counting numbers and whole numbers are the same.

What larger subset does rational and irrational numbers belong to? 

 All non integers are irrational numbers.

All whole numbers are a subset of which set?

The set of rational numbers includes which other set?

Which set includes only all positive counting numbers?