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

### Instruction:
 Jack anaagiza sandwich 3 ambazo kila moja inagharimu $5. Analipa na noti ya $20. Atapata kiasi gani kama mabadiliko?


### Response:
 Gharama ilikuwa 5*3=$<<5*3=15>>15.
Hivyo atapata 20-15=$<<20-15=5>>5 kama mabadiliko.