Are Facebook ads effective?

Related questions

1. Why are my Facebook ads in Review?
2. Is Facebook for Business free?
3. Can I see who clicked on my Facebook ad?
4. Does Facebook need business manager?
5. Do Facebook ads cost money?
6. How much does a sponsored Facebook post cost?
7. What's the difference between ads manager and business manager?
8. How can I see the ads I've clicked on Facebook?
9. How long should you run an ad on Facebook?
10. How much does it cost to run a Facebook ad?

Tags

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3. #reasonable
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7. #should
8. #works
9. #facebook
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13. #examine
14. #short
15. #behind
16. #effective
17. #there
18. #powerfully
19. #advertising
20. #incredibly