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

### Instruction:
 Kwaya ya shule inahitaji mavazi ya kwaya kwa kila mmoja wa waimbaji wake 30. Kwa sasa, shule ina mavazi ya kwaya tu 12 hivyo wameamua kununua mengine. Ikiwa kila vazi la kwaya linagharimu $2, shule itatumia kiasi gani?


### Response:
 Shule inahitaji kununua mavazi ya kwaya 30 - 12 = <<30-12=18>>18.
Hivyo shule itatumia 18 x $2 = $<<18*2=36>>36.