A TV that usually sells for $170.09 is on sale for 15% off. If sales tax on the TV is 6%, what is the price of the TV, including tax?
Find the discounted price: 15% off of 170.09
Discounted Price = 170.09 * (1 - 0.15) <-- 15% as a decimal is 0.15, and 1 is 100%. So, we subtract to get 85% of the original price.
Discounted Price =170.09(0.85)
Discounted Price = $144
Now, add in the sales tax of 6% to the Discounted Price.
Price after sales tax = Discounted Price * 1.06
Price after sales tax = $144 * 1.06
Price after sales tax = $152.64