Answer:
Original Price is $450
Explanation:
(Discounted price) = (100 percent - discount percent) x (original price)
90 = (100%- 80%) x y
y = 90 / 0.20
= 450
You will pay $18 for a item with original price of $90 when discounted 80%. In this example, if you buy an item at $90 with 80% discount, you will pay 90 - 72 = 18 dollars.
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