John injured his back and needs to go to physical therapy.  He went to physical therapy for 6 weeks.  Each week he went twice for 2 hours at a time.  If the sessions cost $125 per hour how much did the physical therapy cost?
Each week he did 2*2=
<gadget id="calculator">2*2</gadget>
<output>4</output>
4 hours of physical therapy.
So it cost 4*125=$
<gadget id="calculator">4*125</gadget>
<output>500</output>
500 per week.
This means he spent 500*6=$
<gadget id="calculator">500*6</gadget>
<output>3_000</output>
3000.

<result>3_000</result>