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

### Instruction:
 Blake alinunua lollipops 4 na pakiti za chokoleti 6. Ikiwa kila lollipop inagharimu $2 na pakiti moja ya chokoleti inagharimu sawa na lollipops 4, Blake atapata pesa ngapi kama alimpa muuzaji pesa ya $10 mara 6?


### Response:
 Blake alinunua vitu 10.
Jumla ya gharama ni 10 x $2 = $<<10*2=20>>20.
Blake alitoa $10 x 6 = $<<10*6=60>>60.
Hivyo, Blake atapata $60 - $20 = $<<60-20=40>>40 kama mabadiliko.