Question 1154186
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4 dresses, average $75 each --> $300 total
4+2=6 dresses, average $50 each --> $300 total<br>
total 4+6=10 dresses, total $300+$300 = $600<br>
average cost per dress = (total cost)/(total number of dresses)<br>
You can do that much on your own....<br>