



 
Daviann, It depends on what you mean by 15% profit. If the profit is 15% of the selling price then the profit is 0.15 × $304 and you would subtract this amount from $304 to find the cost. If the profit is 15% of the cost then the merchant would take the cost, $C, find 15% of the cost and add it to the cost to find the selling price. That is 0.15 × $C + $C = $304, or 1.15 × $C = $304. Solve for $C. Penny  


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