Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 Allen ordered five boxes of pizza, which cost $7 each box. He then gave a tip which amounts to 1/7 of the total cost of his order. If he gave the delivery man $100, how much change did he receive?


### Response:
 Allen a dépensé 5 x 7 $ = 35 $ pour les cinq boîtes de pizza.
Il a donné un pourboire de 35 $ x 1/7 = 5 $ au livreur.
Et il a dépensé un montant total de 35 $ + 5 $ = 40 $ pour la pizza et le pourboire.
La monnaie qu'il a reçue est de 100 $ - 40 $ = 60 $.