Answer:
Scarlett paid $48.51
Explanation:
The initial price of the shoes was $49. After using a 10% discount coupon, the price is reduced by $4.90 ($49 x 0.1). Therefore, the price after the discount is $44.10 ($49 - $4.90).
Then, a 10% processing fee is applied to this discounted price. This fee amounts to $4.41 ($44.10 x 0.1).
So the final amount Scarlett paid is the sum of the discounted price and the processing fee:
$44.10 + $4.41 = $48.51
Therefore, Scarlett paid $48.51 for the shoes in the end.