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

### Instruction:
 Kathryn moved to a new city for the new job she had landed two weeks ago. Her rent was $1200, 1/2 of what she spent on food and travel expenses in a month. Luckily, she found a new friend Shelby, who moved in with her to share the rent. If her salary was $5000 per month, how much money remained after her expenses?


### Response:
 Si le loyer était la moitié de ce qu'elle dépensait en alimentation et en frais de voyage, elle a dépensé 1200*2 = 2400 $.
Son amie a emménagé et a payé 1/2*$1200 = 600 $ de frais de loyer.
Le montant total du loyer que Kathryn devait payer est maintenant de 1/2*$1200 = 600 $.
Ses dépenses mensuelles totales sont de 600+2400 = 3000 $.
Son salaire était de 5000 $, il lui reste donc 5000-3000 = 2000 $.