Answer:
A. Air that is breathed in :)
Answer: x = 87.5
................
638
Step-by-step explanation:
its 638, not 639 because its above 638.5
1. Linear
2. Linear
3. Non-Linear
4. Non-Linear
5. Linear
6. Non-Linear
7. Linear
8. Non-Linear
9. Linear
The code should be LLNNLNLNL