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

### Instruction:
 Janina anatumia $30 kila siku kwa kodi na anatumia vifaa vya thamani ya $12 kila siku kuendesha biashara yake ya vitumbua. Ikiwa anauza kila kitumbua kwa $2, anapaswa kuuza vitumbua vingapi kila siku ili kufidia gharama zake?


### Response:
 Janina anatumia $30+$12=$<<30+12=42>>42 kila siku kwa biashara yake ya vitumbua.
Anapaswa kuuza vitumbua $42/$2=<<42/2=21>>21 kila siku ili kufidia gharama zake.