Answer:
$35.95
Step-by-step explanation:
Since 20% is taken off, that means the sale price is 80% of the original price
42 x . 8 = 33.6
Now, we have to add the sales tax to the new price, 7%
33.6 x 1.07 = 35.952
Another-but longer-way to add sales tax is this:
33.6 x .07 = 2.352
2.352 + 33.6 = 35.952
