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

### Instruction:
 Seti ya vijiko 7 inagharimu $21. Ikiwa kila kijiko kingauzwa kwa kujitegemea, vijiko 5 vingegharimu kiasi gani?


### Response:
 Seti ya vijiko 7 inagharimu $21, hivyo kijiko kimoja kutoka kwenye seti inagharimu 21 / 7 = $<<21/7=3>>3.
Hivyo ikiuzwa kwa kujitegemea, vijiko 5 vingegharimu 5 * 3 = $<<5*3=15>>15.