Mathematics, 15.12.2020 22:20 jacobbecker99

David takes his family to lunch at a restaurant. The bill for lunch before tax is $86.40, plus a sales tax rate of 9%. David also gives the waiter a 20% tip based on the pre-tax amount. Part A What is the amount of the tip David gives the waiter?

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David takes his family to lunch at a restaurant. The bill for lunch before tax is $86.40, plus a sal...