A drum set originally costs $500, but it is on sale for 20% off. If a customer buying the drum set has a $70 gift card, what will her final price be on the drum set?

Answer 1

The final price is 0.80 * 500 = $400
The customer will not pay that amount, however ...

Answer 2

The correct answer is:
Amount Saved with 20% Off: $500 × .20 = $100
Total Price After Sale: $500 - $100 = $400
Total Price After Sale and Gift Card: $400 - $70 = $330

Answer 3

330