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

### Instruction:
 Niko has bought 9 pairs of socks that cost $2 each and plans to resell them. He wants to gain 25% profit from four of the pairs of socks and $0.2 profit each for the other 5 pairs of socks. How much will his total profit be?


### Response:
 Pour les quatre premières paires de chaussettes, Niko gagnera 0.5 dollar de profit chacune.
Donc, son profit total pour les quatre paires de chaussettes sera de 0.5 dollar x 4 = 2 dollars.
Ses gains totaux pour les 5 autres paires de chaussettes sont de 0.2 dollar x 5 = 1 dollar.
Par conséquent, le profit total sera de 2 dollars + 1 dollar = 3 dollars.