Question 1119290
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The statement of the problem is misleading.  The sales tax has nothing to do with the price she needs to set to make a 37% profit.<br>
If the cost was $100, the profit needs to be 37% of $100, which is $37; so the sale price must be $137.<br>
The cost to the customer will be $137 plus 7% sales tax, or 1.07($137) = 146.59; but that figure has anything to do with the question that was asked.