Answer:
List Price: 1750
Sale Price: 1400
Explanation:
If 20% = 350, we can just multiply it by 5 to get the list price.
Because:
= 20% / 100%
= 20 / 100
= 2 / 10
= 1 / 5
= 1 / 5 * 5 = 1
= 350 * 5 = 1750 (list price)
To get the sale price, we subtract 350 from 1750
1750 - 350 = 1400
1400 is 80% of full price, which is what it was purchased for.