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

### Instruction:
 Jar A ina mabulinge 28. Jar B ina mabulinge 12 zaidi ya Jar A. Jar C ina mabulinge mara mbili ya Jar B. Jumla ya mabulinge ni mangapi?


### Response:
 Jar B ina mabulinge 28 + 12 = 40.
Jar C ina mabulinge 2 x 40 = 80.
Hivyo, jumla ya mabulinge ni 28 + 40 + 80 = <<28+40+80=148>>148.