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

### Instruction:
Isabela bought twice as many cucumbers as pencils, with both costing $20 each. If she got a 20% discount on the pencils and bought 100 cucumbers, calculate the total amount she spent to buy the items.

### Response:
 Ikiwa Isabela alinunua mara mbili ya idadi ya penseli, alinunua 100/2 = <<100/2=50>>50 penseli.
Ikiwa bei ya awali ya penseli ilikuwa $20, alipata punguzo la $20*0.20 = $<<20*0.20=4>>4 kwa kila penseli.
Bei ambayo alinunua penseli ni $20-$4 = $<<20-4=16>>16
Ikiwa alinunua 50 penseli, gharama jumla aliyopata ni $16*50 = $<<16*50=800>>800
Kwa matango, kwa bei ya awali ya $20 kila moja, alilipa $20*100 = $<<20*100=2000>>2000
Kwa vitu vyote, alilipa kiasi jumla cha $2000+$800 = $<<2000+800=2800>>2800