Answer:
87.84(repeating) irrational
-(sqrt[11]) irrational
-(sqrt[36]) rational
72.28 rational
11pi irrational
Step-by-step explanation:
If you can ever see the whole number, it is rational. For example, 5.194291497129471290410247912094142 is rational, although not very pleasant to look at. Repeating decimals, square roots of prime numbers, and special numbers (like pi in your question) are irrational because they go on infinitely.
