Tom decides to buy some shirts from his favorite fandoms because there is a sale on his favorite website.  He buys 5 t-shirts from each of his 4 favorite fandoms.  The shirts normally cost $15 each but there is a 20% off sale.   The order qualified for free shipping but he still needed to pay 10% tax.  How much did he pay?
He bought 5*4=
<gadget id="calculator">5*4</gadget>
<output>20</output>
20 shirts.
The discount saves him 15*.2=$
<gadget id="calculator">15*.2</gadget>
<output>3</output>
3 per shirt.
So each shirt cost 15-3=$
<gadget id="calculator">15-3</gadget>
<output>12</output>
12.
So the total order cost 20*12=$
<gadget id="calculator">20*12</gadget>
<output>240</output>
240.
Tax added 240*.1=$
<gadget id="calculator">240*.1</gadget>
<output>24</output>
24.
So he paid 240+24=$
<gadget id="calculator">240+24</gadget>
<output>264</output>
264.

<result>264</result>