S=P/3. You have to divide 3 on both sides.
Answer:
A book is the answer
Explanation:
1. Get out
2. to visit
3. to memorize
4. to eat
5. speak
6. to watch
7. listening
8. shouldn't
9. should practice
10. should get up
11. was destroyed
12. were designed
13. is spoken
14. should be
15. can't be
