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

### Instruction:
Macey saves to buy herself a shirt that costs $3. She was able to save $1.50 already. How many weeks does she need to save for the remaining amount if she saves $0.50 per week?

### Response:
 Shati linagharimu $3, na tayari ana $1.50, hivyo anahitaji $3 - $1.50 = $<<3-1.5=1.5>>1.50 zaidi ili kulipia shati.
Anaokoa $0.50 kwa wiki, hivyo anahitaji 1.50 / 0.50 = <<1.5/0.5=3>>3 wiki kuokoa kiasi kilichobaki.