Hey there!
The answer is B.
- LEARN WHY -
Step 1: Defenition of irrational numbers.
A rational number is a number that can be written as a fraction, and therefore an irrational number is a number that cannot be written as a fraction
Step 2: Apply the knowledge
-22 as a fraction would be -22/1
3/8 is already a fraction
8.5 as a fraction would be 8 1/2
Only 7.832... cannot be written as a fraction.
Hence, number B is irrational
~Hope this helps you!
