Answer: $138.97
Explanation: For this problem, you need to understand that a rebate is basically a refund. So in this problem, the manufacturer and the store are giving back money towards the total of the office chair. Knowing that, we can find the final price with the following expression:
$167.87 - ($19.95 + $8.95)
= $167.87 - ($28.9)
= $138.97
So the final price of the chair was $138.97 for Wally Martin.