2. Determining opportunity cost Juanita is deciding whether to buy a dress that she wants, as well as where to buy it. Three stores carry the same dress, but it is more convenient for Juanita to get to some stores than others. For example, she can go to her local store, located 15 minutes away from where she works, and pay a marked-up price of $129 for the dress: Store Travel Time Each Way Price of a Dress (Minutes) (Dollars per dress) Local Department Store 15 129 Across Town 30 86 Neighboring City 60 63 Juanita makes $50 an hour