Bonus: A survey of a group of 112 tourists were taken in St….

Bonus: A survey of a group of 112 tourists were taken in St. Louis.  The survey showed the following: 60 of the tourists plan to visit the Gateway Arch; 46 plan to visit the zoo; 11 plan to visit the Art Museum and the zoo, but not the Gateway Arch; 12 plan to visit the Art Museum and the Gateway Arch, but not the zoo; 16 plan to visit the Gateway Arch and the zoo, but not the Art Museum; 7 plan to visit the Art Museum, the zoo, and the Gateway Arch; 16 plan to visit none of the three places. How many plan to visit the Art Museum only?