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

### Instruction:
 Samuel ana noti za $5, $10, na $20 ambazo jumla yake ni $150 katika mkoba wake. Noti za $10 zina jumla ya $50, na ana noti 4 za $20. Samuel ana noti ngapi katika mkoba wake?


### Response:
 Samuel ana noti 4 za $20, hivyo $100 iliyobaki inajumuisha noti za $10 na $5.
Kwa kuwa noti za $10 zina jumla ya $50, $50 iliyobaki inajumuisha noti za $5.
Hivyo, Samuel ana noti 4 za $20, 5 za $10, na 10 za $5, jumla ya noti 19.