###Human: Jeanne wants to ride the Ferris wheel, the roller coaster, and the bumper cars. The Ferris wheel costs 5 tickets, the roller coaster costs 4 tickets and the bumper cars cost 4 tickets. Jeanne has 5 tickets. How many more tickets should Jeanne buy?, ### Assistant: The total number of tickets needed is 5 tickets + 4 tickets + 4 tickets = 13 tickets.
Jeanne needs 13 tickets - 5 tickets = 8 tickets. 
 So the answer is :  8