The original price of a shirt is $16.00. The price of the shirt is discounted by 20%, then a 4% sales tax is added.

What is the FINAL price of the shirt after the discount is taken and the tax is added? Rounds to the nearest penny.

First, we calculate the discounted price of the shirt after a 20% discount:

Discounted price = $16.00 - (20% of $16.00)
Discounted price = $16.00 - (0.20 * $16.00)
Discounted price = $16.00 - $3.20
Discounted price = $12.80

Next, we calculate the price after adding a 4% sales tax:

Final price = Discounted price + (4% of Discounted price)
Final price = $12.80 + (0.04 * $12.80)
Final price = $12.80 + $0.512
Final price = $13.312

Rounded to the nearest penny, the final price of the shirt after the discount is taken and the tax is added is $13.31.