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

### Instruction:
 Cappuccinos gharama $2, chai baridi gharama $3, cafe latte gharama $1.5 na espresso gharama $1 kila moja. Sandy anaweka oda ya vinywaji kwa ajili yake na marafiki zake. Anaweka oda ya cappuccinos tatu, chai baridi mbili, cafe latte mbili, na espresso mbili. Atapata kiasi gani cha pesa kama mabadiliko kwa noti ya dola ishirini?


### Response:
 Pata gharama jumla ya cappuccinos kwa kuzidisha bei na wingi: 3 cappuccinos x $2/cappuccino = $<<3*2=6>>6.
Kisha fanya hivyo hivyo kwa chai baridi: 2 chai baridi x $3/tea = $<<2*3=6>>6.
Kisha fanya hivyo hivyo kwa cafe latte: 2 lattes x $1.5/latte = $<<2*1.5=3>>3.
Kisha fanya hivyo hivyo kwa espresso: 2 espressos x $1 = $2.
Ongeza gharama ya vinywaji vyote ili kupata jumla ya bili: $6 + $6 + $3 + $2 = $<<6+6+3+2=17>>17.
Sandy atapokea $20 - $17 = $<<20-17=3>>3 kama mabadiliko.