Answer:
you will save $75.9 and your final price will be $89.1.
Step-by-step explanation:
credit card discount = (100 - 20 - 20)*10/100
= 6%
single equivalent discount = store wide sale + coupencabin.com coupon + credit card discount
= 20% + 20% + 6%
= 46%
savings = gift price*discount rate
= 165*46%
= $75.9
final price = gift price - savings
= $165 - $75.9
= $89.1
therefore, you will save $75.9 and your final price will be $89.1.