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Gabe went out to lunch with his best friend. The bill cost $16.40 before tax and tip. He paid a 9% tax and he left a 20% tip. How much did Gabe spend?

Hint: Tax and tip are both based on the original cost of the bill.
Don't forget to round to the nearest cent!

Answer :

Answer: $21.15

Explanation: First you want to take 9 percent of $16.40 using the equation 16.40 * 0.09 which is about $1.47. Then take 20 percent of $16.40 using the equation 16.40* 0.2 which is $3.28.
Now do 16.40+1.47+3.28 which equals $21.15

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