Question 1001208: I need to write an equation that provides the total cost c of buying x boxes in one year with a 20 percent discount ? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! If you get a 20% discount, you are still paying 80% of the original price.
Call the original price, p.
Then your total cost, c, is
c = n(.8p)