



 
Hi Lyn, You purchased the item for $\$7.70$ and you want to sell it for $\$x$ so that the profit is $30\%$ of $x.$ Hence your cost is $70\%$ of $x.$ Thus \[0.7 x = 7.70.\] or \[x = \frac{\$7.70}{0.7} = \$11.00.\] Penny  


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