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

### Instruction:
A bird eats 7 berries a day. Samuel has 5 birds. How many berries do Samuel's birds eat in 4 days?

### Response:
 Ndege hula matunda 7 x 4 siku = <<7*4=28>>28 matunda.
Ndege 5 x 28 matunda/ndege = <<5*28=140>>140 matunda.