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

### Instruction:
 Duka la magari lina sehemu ambayo Clark anahitaji kwa $80. Clark ananunua 7 na kupata punguzo. Ikiwa Clark alilipa tu $439, punguzo lilikuwa kiasi gani?


### Response:
 Awali sehemu za gari zingekuwa jumla ya dola 80*7 = <<80*7=560>>560.
Clark alipata punguzo la 560-439 = <<560-439=121>>121 dola.