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

The final cost is $207.65

Step-by-step explanation:

Regular price of the chair is $349

with 30% off,

(30/100) * $349 = 0.3*$349

= $104.70

actual cost is $349 - $104.70 = $244.30

For a customer using 15% off coupon

15% of actual cost

(15/100) * 244.30 = 0.15*244.3

= $36.65

Final cost is $244.30 - $36.65

= $207. 65