All irrational numbers are real numbers. ☺
18, you have 3 choices for the bottom because you can't use the small one, 3 choices for the next because you can now use the small one, 2 for the next and finally 1. You multiply all of them to get 18
Answer:

Step-by-step explanation:

The corners of a door
The edge of a table
corners of a book
basically any corner of a rectangular or square object
Answer:
363y + 30
Step-by-step explanation: