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

### Instruction:
Luigi bought four pizzas for $80.  Each pizza was cut into 5 pieces.  How much did each piece of pizza cost, in dollars?

### Response:
 Kuna vipande 4*5=<<4*5=20>>20 vya pizza.
Kila kipande kinagharimu 80/20=<<80/20=4>>4 dola.