You next flew to CDG Airport in Paris. Before you stepped out of CDG, you exchanged the same $100 for euro with a money changer who posted USD: 1.10 buy; 1.25 sell. Since you were in a hurry, you did not could the exact change in euro you received. You let everything be contained in an envelope. A day later, you were on your way back to JFK Airport. Again, you're well received, and did not spend any of your own money. At CDG Airport, you handed the same envelope to the money changer, and told her you wanted USD. You saw the exact same currency quotes a day earlier. How much should you have received back from the money changer?