James goes to pet smart to adopt a puppy.  The adoption fee is $200 and his friend agrees to pay 25% of that.  How much does James have to pay?
His friend agrees to pay 200*.25=$
<gadget id="calculator">200*.25</gadget>
<output>50</output>
50.
So he needs to pay 200-50=$
<gadget id="calculator">200-50</gadget>
<output>150</output>
150.

<result>150</result>