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

### Instruction:
A store offers a $2 discount for every $10 purchase on any item in the store. Kataleya went to the store and bought 400 peaches sold at forty cents each. Calculate the total amount of money she paid at the store for the fruits.

### Response:
 Kwa kuwa senti arobaini ni sawa na dola moja, pea 400, kila moja ikiuzwa kwa senti arobaini, zilikuwa na thamani ya 400* $0.40 = $<<400*0.4=160>>160.
Kataleya alipokea punguzo la $2 kwa kila ununuzi wa $10. Kwa kuwa alinunua bidhaa zenye thamani ya $160, idadi ya kumi katika 160 ni 160/10 = <<160/10=16>>16.
Ikiwa kwa kila 10 dola alipokea punguzo la dola mbili, kwa kumi kumi, alipokea 16*2 = <<16*2=32>>32 dola punguzo.
Ununuzi wake wa jumla ulikuwa na thamani ya $160, na alipokea punguzo la $32, ambayo inamaanisha alilipa $160-$32 = $<<160-32=128>>128 kwa pea hizo.