Solve the below problem:
Q: You went to couponcabin.com and found a 20% off coupon to your significant others favorite store. Armed with that coupon, you went to the store only to find a storewide sale offering 10% off everything in the store. In addition, your credit card has a special offer that allows you to save 10% if you use your credit card for all purchases that day. Using your credit card, what will you pay before tax for the $173 gift you found? Use the single equivalent discount to calculate how much you save and then calculate your final price.