On Black Friday, everything is 20% off at Best Buy. Which expression best represents how much an item would cost after the discount?

(n*80) / 100=f

Step-by-step explanation:

If it's multiple choice, I don't know the choices. I'd say:

n = number of dollars it costs:

f = final price

(n*80) / 100=f

It will work for any given amount:

Let's say this item was 3 dollars.

Using the formula (n*80) / 100=f where n is 3 in this situation we get:

(3*80) / 100=f

240/100=f

f=$2.40

The final price of the item was $2.40 with a 20% discount.