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

### Instruction:
 Amanda alipokea $50 kama zawadi. Anapanga kununua kaseti mbili ambazo kila moja inagharimu $9 na seti ya headphone inayogharimu $25. Atakuwa na pesa ngapi zilizobaki?


### Response:
 Kaseti zitagharimu 2 × 9 = $<<2*9=18>>18.
Atatumia jumla ya 18 + 25 = $<<18+25=43>>43.
Amanda atakuwa na 50 - 43 = $<<50-43=7>>7 zilizobaki.