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

### Instruction:
 Maddie wants to see how much her mom spends on coffee each week. She makes herself 2 cups of coffee per day. Each cup has 1.5 ounces of coffee beans. A bag of coffee costs $8 and contains 10.5 ounces of beans. She uses 1/2 a gallon of milk per week. A gallon of milk costs $4. She doesn't add any sugar to the coffee. How much does she spend on her coffee per week?


### Response:
 Elle fait 7 tasses de café par semaine car 2 x 7 = <<7*2=14>>14
Elle utilise 10.5 onces de grains de café par semaine car 14 x 1.5 = <<14*1.5=21>>21
Elle achète 2 sacs de grains de café par semaine car 21 / 10.5 = <<21/10.5=2>>2
Elle dépense 16 $ pour les grains de café par semaine car 2 x 8 = <<2*8=16>>16
Elle dépense 2 $ pour le lait par semaine car 4 x (1/2) = <<4*(1/2)=2>>2
Elle dépense 18 $ par semaine car 16 + 2 = <<16+2=18>>18