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

### Instruction:
 Austin alinunua roboti kwa kila rafiki yake saba. Kila roboti inagharimu $8.75. Alitozwa jumla ya $7.22 kama kodi. Aliacha na $11.53 kama mabadiliko. Austin alianza na kiasi gani?


### Response:
 Kabla ya kodi, Austin alitumia $8.75*7=$<<8.75*7=61.25>>61.25
Pamoja na kodi alitumia $61.25+$7.22=$<<61.25+7.22=68.47>>68.47
Alipata $11.53 kama mabadiliko hivyo alianza na $68.47+$11.53=$<<68.47+11.53=80>>80