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?
Macey needs to save $3 - $1.50 = $
<gadget id="calculator">3-1.5</gadget>
<output>1.5</output>
1.50 more for the shirt.
So she needs $1.50/$0.50 = 
<gadget id="calculator">1.50/0.50</gadget>
<output>3</output>
3 more weeks to save for the remaining amount.

<result>3</result>