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

### Instruction:
 Jack alikwenda dukani na $100 na kununua chupa 4 za maji. Kisha mama yake alimpigia simu na kumwomba kununua mara mbili ya idadi ya chupa alizozinunua. Kila chupa iligharimu $2. Hatimaye, alinunua nusu pauni ya jibini na pauni 1 ya jibini inagharimu $10. Jack ana pesa kiasi gani zilizobaki?


### Response:
 Mama yake Jack alimwomba kununua chupa 2 * 4 = <<2*4=8>>8 za maji.
Jumla ya chupa za maji ambazo Jack alinunua ni 4 + 8 = <<4+8=12>>12 chupa.
Hivyo jumla ya gharama ya chupa za maji ni 12 chupa * $2/chupa = $<<12*2=24>>24.
Jibini linagharimu 1/2 * $10/pauni = $<<1/2*10=5>>5.
Hivyo Jack alitumia $24 + $5 = $<<24+5=29>>29 jumla.
Aliyobaki nayo ni $100 - $29 = $<<100-29=71>>71.