Marian's pending credit card balance is $126.00.  She puts $60.00 worth of groceries on her card and half that amount in gas.  She returned some bath towels for $45.00.  What's the new balance on her credit card?
Her gas is half the price as her $60.00 groceries so that's 60/2 = $
<gadget id="calculator">60/2</gadget>
<output>30</output>
30.00 in gas.
Her card has a balance of $126.00 and she added $60.00 in groceries and $30.00 in gas for a total of 126+60+30 = $
<gadget id="calculator">126+60+30</gadget>
<output>216</output>
216.00.
Her balance is $216.00 and she returns $45.00 worth of merchandise for a new balance of 216-45 = $
<gadget id="calculator">216-45</gadget>
<output>171</output>
171.00.

<result>171</result>