Answer:
$159.10
Step-by-step explanation:
Original price: $199
The price is reduced 10%. That means the price is now 90% of the original price.
90% of $199 = 0.9 * $199 = $179.10
The price is $179.10 after the 10% discount.
Apply the $20 coupon to reduce the price by $20.
$179.10 - $20 = $159.10
Answer: $159.10