How much should I spend on AdWords?

Related questions

1. How long does it take to learn Google AdWords?
2. How many ads does Google have?
3. Is Google AdWords hard to learn?
4. Is pay per click effective?
5. What is Google AdWords process?
6. Do Google ads really work?
7. How do I set up Google AdWords?
8. Do you get paid for Google ads?
9. How much do Google ads cost?
10. Why is Google AdWords important?

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19. #adwords