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

### Instruction:
A magazine costs $3 each. Jewel bought 10 magazines to be sold at $3.50 each. How much will be Jewel gain from selling these?

### Response:
 กำไรของจูล์ต่อเล่มคือ $3.50 - $3 = $<<3.5-3=0.50>>0.50
ดังนั้น กำไรรวมของเธอจะเป็น $0.50 x 10 = $<<0.50*10=5.00>>5.00.