How much do you tip for a $20 pizza delivery?

Related questions

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3. How much is delivery dominos?
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5. Can you pay with cash for Dominos delivery?
6. How much is tip for pizza delivery?
7. Is $2 a good tip?
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Tags

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2. #three
3. #small
4. #offer
5. #orders
6. #amount
7. #consider
8. #before
9. #bucks
10. #customary
11. #would
12. #delivery
13. #never
14. #percent
15. #minimum
16. #opting