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

### Instruction:
 Jimmy alinunua kalamu 3 za shule kwa $1 kila moja, daftari 4 kwa $3 kila moja na folda 2 kwa $5 kila moja. Ikiwa alilipa na noti ya $50, atapata pesa ngapi kama mabadiliko?


### Response:
 Alitumia $3 x 4 = $<<3*4=12>>12 kwa daftari.
Alitumia $2 x 5 = $<<2*5=10>>10 kwa folda.
Jumla ya pesa alizotumia ni $12 + $10 + $3 = $<<12+10+3=25>>25.
Atapata mabadiliko ya $50 - $25 = $<<50-25=25>>25.