Answer:
7. This means the cost of the item to you is $52.85. You will pay $52.85 for a item with original price of $75.50 when discounted 30%.
If you buy an item at $75.50 with 30% discount, you will pay 75.50 - 22.65 = 52.85 dollars.
8. Same principle applies
40.99×25/100=10.25
Therefore, 40.99-10.25= 30.74 dollars
9. 30×40/100= 12
30-12= 18 dollars
