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

### Instruction:
Melisa and Jennifer threw a fiftieth birthday party for their father at a local restaurant. When the bill came, Melisa added a 15% tip of $42. Jennifer said that the service was wonderful and they should leave a 20% tip instead. How much is a 20% tip?

### Response:
 Ikiwa inajulikana kuwa asilimia 15 ni $42, basi asilimia 5 inaweza kupatikana kwa kugawanya $42 ÷ 3 = $<<42/3=14>>14.
Kwa hivyo asilimia 20 ni $14 + $42 = $56.