Refer to SM1 Q2. Thomas has a ticket to go to a movie this Saturday. He was willing to pay $20, but he only paid $15 for it. After he bought the movie ticket his friend offered to take him out to dinner Saturday evening. Thomas has to choose between going for the movie or a free dinner. He can resell the ticket for $10. What is the lowest value that Thomas should place on the free dinner to make him choose the free dinner rather than the movie.