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

### Instruction:
 Ikiwa Stu ana vitabu 9 na Albert ana vitabu mara 4 ya Stu, watu hao wana jumla ya vitabu vingapi?


### Response:
 Albert ana vitabu 9*4 = <<9*4=36>>36.
Hivyo, wote wana jumla ya vitabu 36+9 = <<36+9=45>>45.