Percent: bill at a restaurant, including a 15% tip, is...

Takitia

New member
Joined
Jul 11, 2007
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18
I don't know which formula to use for this problem

If the total bill at a restaurant, including a 15% tip, is $65.32, what was the cost
of the meal alone?
 
...and write a note: "If you had not included the gratuity, I would have given you 20%."
 
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