How does cashback work on credit cards?

Related questions

1. How do credit cards earn money?
2. Does Mcdonalds do cash back?
3. Do you get charged for cashback on a credit card?
4. Can you buy something with a credit card and return it for cash?
5. Is Mastercard Black card worth it?
6. Why do banks offer cash back?
7. Why do credit cards offer cash back?
8. Are Cash Back Credit Cards Worth It?
9. What is the catch with cash back credit card?
10. Do you have to pay back cash back rewards?

Tags

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2. #cards
3. #percentage
4. #spend
5. #basis
6. #amount
7. #monthly
8. #though
9. #earned
10. #generally
11. #annually
12. #credit
13. #statement
14. #cashback