Reward, one week only, receive a 10 dollar gift card for every 50 dollars spent.

1) If your reward is $10, what do you know about the amount of your purchase?

2) Give three possible amounts if your reward is $20.

3) What should you do if your total purchase is $98? Explain your answer

1 answer

If you received a $10 reward, then you spent between $50 and $99.99
If you received a $20 reward, then you could have spent $100, $125, or $149.99.
If your purchase is $98, then you'd be better off spending $2 more, so that you'll get another $10 gift card. That would be a net gain of $8, plus the other $10 gift card you got for the first $50 you spent.