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

### Instruction:
 Chris alinunua sinema 8 kwenye DVD kwa $12 kila moja na sinema 4 kwenye Blu-ray kwa $18 kila moja. Bei wastani aliyoilipa kwa kila sinema ni ipi?


### Response:
 Alichagua jumla ya $12 * 8 + 4 * $18 = $<<8*12+4*18=168>>168
Alichagua jumla ya sinema 8 + 4 = <<8+4=12>>12.
Bei wastani ni $168 / 12 = $<<168/12=14>>14 kwa kila sinema.