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

### Instruction:
Jackson wants to impress his girlfriend by filling her hot tub with champagne. The hot tub holds 40 gallons of liquid. Each bottle of champagne holds 1 quart. (There are 4 quarts per gallon). If each bottle of champagne costs $50, but Jackson gets a 20% volume discount, how much does he spend on champagne?

### Response:
 Kwanza, tafuta idadi ya robo galoni ambazo bafu inahifadhi kwa kuzidisha idadi ya galoni inayohifadhi na 4: 40 galoni * 4 robo galoni/galoni = <<40*4=160>>160 robo galoni
Kisha zidisha idadi ya robo galoni za shampania ambazo Jackson ananunua na bei ya kawaida kwa chupa ili kupata gharama kabla ya punguzo: 160 robo galoni * $50/robo galoni = $<<160*50=8000>>8000
Kisha zidisha idadi hiyo na 20% ili kupata kiasi cha punguzo: $8000 * 20% = $<<8000*20*.01=1600>>1600
Mwishowe, toa kiasi cha punguzo kutoka kwenye gharama jumla ili kupata kiasi cha mwisho ambacho Jackson analipia: $8000 - $1600 = $<<8000-1600=6400>>6400