1. Safari theme at the Skating Rink on Friday. 2. Space theme at the Park on Saturday. Farah's tree diagram shows two themes: Space and Safari. Each theme branches to two locations: Skating Rink and Park. Each location branches to three possible days: Friday, Saturday, Sunday. To find other possible parties, we pick different combinations of theme, location, and day. Step 1: Identify the given party: Space theme, Skating Rink, Sunday. Step 2: Choose other combinations: - Safari theme, Skating Rink, Friday. - Space theme, Park, Saturday. These are valid because they follow the branches in the tree diagram. Thus, two other possible parties are: 1. Safari theme at the Skating Rink on Friday. 2. Space theme at the Park on Saturday.