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5 votes
Is the expression a valid way to calculate a 15% tip on a cab fare of d dollars?

Answer yes or no


EXPRESSION

0.10d + 0.05d Yes or No


0.85d Yes or No


1.015d Yes or No


0.15d Yes or no

User Kayze
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1 Answer

4 votes
Answer: Yes, no, no, Yes
User ZZZ
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