A chair's regular price is $349. It is on clearance for 30% off, and a customer uses a 15% off coupon after that. What is the final cost of the chair before sales tax?

The price paid by the costumer was 207.655 $

Step-by-step explanation:

The original price of the chair is 349 we need to compute the price after the first discount of 30%, since it was a discount the new price will be 100% - 30% = 70% of the original price, so we need to find that value by using the following equation:

Price after first discount = Original price *(70/100)

Price after first discount = 349 * 0.7 = 244.3 $

The customer used a coupon on top of that of 15%, since it was also a discount we need to compute 85% of the new price (244.3) by using the following equation:

Price after second discount = Price after first discount * (85/100)

Price after second discount = 244.3 * 0.85 = 207.655 $

The price paid by the costumer was 207.655 $