A group of friends went to lunch. The bill, before sales tax and tip was $37,60. A sales tax of 8% was added. The group then tipped 15% on the amount after the sales tax was added. What was the amount in dollars, of the sales tax?
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What was the total amount the group pald, including tax and tip?

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i believe the correct answer is b.

me! what did you put for this question?

step-by-step explanation:

your answer would be 12

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: