Use Venn Diagrams to solve the problem. 26. A survey of a group of 111 tourists was taken in St. Louis. The survey showed the following: 61 of the tourists plan to visit Gateway Arch; 45 plan to visit the zoo; 10 plan to visit the Art Museum and the zoo, but not the Gateway Arch; 14 plan to visit the Art Museum and the Gateway Arch, but not the zoo; 17 plan to visit the Gateway Arch and the zoo, but not the Art Museum; 6 plan to visit the Art Museum, the zoo and the Gateway Arch; 15 plan to visit none of the three places. How many plan to visit the Art Museum only? (6 points)