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

### Instruction:
James makes potatoes for a group.  Each person eats 1.5 pounds of potatoes.  He makes potatoes for 40 people.  A 20-pound bag of potatoes costs $5.  How much does it cost?

### Response:
 Anahitaji pauni 1.5*40=<<1.5*40=60>>60 za viazi
Hivyo anahitaji kununua mifuko 60/20=<<60/20=3>>3 ya viazi
Hivyo itagharimu 3*5=$<<3*5=15>>15