James has barrels that he uses to store water.  They store 3 gallons more than twice as much as a large cask.  If he has 4 barrels and a cask stores 20 gallons, how much water can he store?
A barrel stores 20*2+3=
<gadget id="calculator">20*2+3</gadget>
<output>43</output>
43 gallons.
So he can store 4*43=
<gadget id="calculator">4*43</gadget>
<output>172</output>
172 gallons.

<result>172</result>