Given :
Cost , c = $299 .
The total including sales tax was 1.07 times the price.
A discount was then applied by multiplying the total price by 0.90.
To Find :
The total cost of the game system including the sales tax and discount.
Solution :
Cost after tax , [tex]c_1=c\times 1.07=299\times 1.07=\$319.93[/tex] .
Cost after discount , [tex]c_2=c_1\times 0.9=319.93\times 0.9= \$287.937[/tex] .
Therefore , the total cost of the game system including the sales tax and discount is $287.937 .
Hence , this is the required solution .
