Determine whether the following are mathematical statements or not.
1. Math 10 is a GE course.
2. What is your name?
3. I am a UP student.
4. x < y
5. Please open the door.
6. π is a special number.
7. The chairs are pink or the earth is round.
8. 3 + 4 – 5
9. If cats are mammals, then mice are reptiles.
10. Let us dance.