Corna wants to buy a shirt. The store buys the shirt for $20, but charges 30% for profit. However, the shirt is on sale for 50% off the selling price. What is the price now?
First find how much the store makes in profit: $20 * 0.30 = $
<gadget id="calculator">20*0.30</gadget>
<output>6</output>
6 for profit.
Then find the regular selling price: $20 + $6 = $
<gadget id="calculator">20+6</gadget>
<output>26</output>
26 total price.
Then multiply the regular price by the discount to get $26 * 0.50 = $
<gadget id="calculator">26*0.50</gadget>
<output>13</output>
13 for the final price.

<result>13</result>