Question 1189904
.
Shauna is buying a laptop computer. she will pay 8% sales tax on the price before any rebates. 
where will she get a better buy?
XYZ-Tronic
price - $629
mail-in rebate $150
TEC-U-COMP
price - $649
discount 25% off
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        The solution in the post by @mananth is correct for XYZ-Tronic and is wrong for TEC-U-COMP.

        So, I will make two solutions correctly.



<pre>
8% sales tax on the price before any rebates
Option I
XYZ-Tronic
price - $629
mail-in rebate $150
Total payment = 629*8% + 629 -150 = $529.32


Option II
TEC-U-COMP
price - $649
discount 25% off, so the price after the discount is  649 - 0.25*649 = 486.75
The  8%  tax on the price of  $486.75 is  0.08*486.75 = 38.94 dollars.
Total payment = $486.75 + $38.94 = $525.69


<U>ANSWER</U>.  Option II (TEC-U-COMP) is cheaper.
</pre>

Solved correctly.