John works 12 hours every other day.  He gets a 30% raise from his former $20 an hour job.  How much does he make in a 30 day month?
He works 30/2=
<gadget id="calculator">30/2</gadget>
<output>15</output>
15 days.
So he works 15*12=
<gadget id="calculator">15*12</gadget>
<output>180</output>
180 hours in the month.
He got a 20*.3=$
<gadget id="calculator">20*.3</gadget>
<output>6</output>
6 an hour raise.
So he gets paid 20+6=$
<gadget id="calculator">20+6</gadget>
<output>26</output>
26 an hour.
That means he makes 26*180=$
<gadget id="calculator">26*180</gadget>
<output>4_680</output>
4680.

<result>4_680</result>