Safari Park
Stuart J. Murphy, Steve Bjorkman
Library Binding
(HarperCollins, Dec. 18, 2001)
It's 4 tickets for the Treetop Coaster! Just 2 for the Elephant Twirl! five cousins each have 20 tickets to spend at Safari, and a little algebra will tell them how many rides they can try. But who will dare the death-defying Terrible Tarantula?
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