You can put this solution on YOUR website! Total Cost(including tax) = 52.92
Total Sale Price * (1 + Sale Tax %)= Total Cost
Total Sale Price * (1.08)=52.92
Total Sale Price = 52.92/1.08
Total Sale Price=49
Since you know She brought 4 CD
Divide Total Sale Price By Number of CD and you get Price Per CD
49/4=$12.25/ CD