Answer:
Well, in order to find your answer, you must first find what 6% of 80 is.
To do this, I would first make a chart in order to help me remember what each number equals to.
80 is equal to 100%
And an unknown number is equal to 6% of 80
So this would be my chart:
80 100
? 6
Now multiply 80 by the number diagonally across to it, meaning the number 6.

Now divide the product by the number across from 80, or the number 100.

6% of $80 is $4.80
Now add the 6% tax to the price of the sweatshirt.

The total would be $84.80