Answer :
The sale price is 0.85r = $30, where r is the regular price.
$30
Then 0.85r= $30, and r = ----------- = $35.29
0.85
The tax on that $30 sale price is 0.082($30) = $2.46,
So the final cost (based upon the sale price) is $30+$2.46 = $32.46.
$30
Then 0.85r= $30, and r = ----------- = $35.29
0.85
The tax on that $30 sale price is 0.082($30) = $2.46,
So the final cost (based upon the sale price) is $30+$2.46 = $32.46.