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

### Instruction:
 John anaenda dukani kununua Slurpees na anawapa $20. Slurpees gharama $2 kila moja na alipata $8 kama mabadiliko. John alinunua Slurpees ngapi?


### Response:
 Alitumia 20-8=$<<20-8=12>>12 kwa Slurpees.
Hivyo alinunua Slurpees 12/2=<<12/2=6>>6.