. Lightning Lucy’s burnable CDs are on sale this month for 10% off regular prices. If a pack of 10
blank CDs normally costs $15, how much do you
save per CD?
Original unit cost of CDs = $ per CD
10% of original cost = $
Original cost minus the 10% discount = $
Discounted unit cost of CDs = $ per CD
Subtract the two unit costs to find
how much saved per CD = $​