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

### Instruction:
 Dave alinunua vitabu 8 kuhusu wanyama, vitabu 6 kuhusu anga za nje, na vitabu 3 kuhusu treni ili kujifurahisha wakati wa likizo. Kila kitabu kiliigharimu $6. Dave alitumia kiasi gani kwa vitabu?


### Response:
 Dave ananunua vitabu 8 + vitabu 6 + vitabu 3 = <<8+6+3=17>>17 jumla ya vitabu.
Anapaswa kutumia vitabu 17 × $6/kitabu = $<<17*6=102>>102 ikiwa anataka kununua vitabu vyote.