Answer:
The original price of the shoes was $53.
The discount percentage was 20%.
The discount amount was 53 * 0.2 = 10.6.
The sale price after the discount was 53 - 10.6 = 42.4.
The processing fee percentage was 20%.
The processing fee amount was 42.4 * 0.2 = 8.48.
The final price after the processing fee was 42.4 + 8.48 = 50.88.
Therefore, the discount was $10.60, and the final price was $50.88.
Explanation: