An introduction to simple algebra concepts follows Paul, his sister, and his three cousins as they try and figure out how many tickets it takes to ride the exciting rides at the new amusement park, but when Paul loses his tickets, he might not get a chance to ride the terrifying Terrible Tarantula! Simultaneous.

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?