Answer: You will pay 69.63 dollars in total after the 10% coupon and sales tax.
Step-by-step explanation: Your first total money spent on the purchase was 72.99 $ but with the 10% coupon, it took off 7.30 $. So, you were left to pay 65.69 but 6% tax is equal to 3.94 $. So, you just add 65.69 plus your 3.94 $ sales tax.