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

### Instruction:
 Sally alinunua fremu 3 za picha, kila moja ikimgharimu $3. Aliilipa kwa noti ya $20. Alipata kiasi gani cha pesa taslimu?


### Response:
 Sally alinunua fremu 3 za picha, kila moja ikimgharimu $3. Hivyo, alilipa $3 * 3 = <<3*3=9>>9 za pesa.
Aliilipa kwa noti ya $20. Hivyo, alipata $20 - 9 = <<20-9=11>>11 za pesa taslimu.