Question 1029329

Ron bought a computer, listed at $x, at a 15% discount.  He also paid a 5% sales tax.  After 6 months, he decided to sell the computer secondhand for $y, which was 55% of what he paid originally.  Express y as a function of x.

My answer: y=-55% = x-15%+5%.  I'm very confused?
<pre>List price: $x
Cost after a 15% discount: .85(x), or .85x
Total cost after paying 5% sales tax: 1.05 * .85x, or .8925x
Considering that he sold it for 55% of the total cost (computer cost, plus sales tax), the selling price, or y = .55(.8925x), or {{{highlight_green(y = .490875x)}}}