John decides to take up illustration.  He draws and colors 10 pictures.  It takes him 2 hours to draw each picture and 30% less time to color each picture.  How long does he spend on all the pictures?
The coloring takes 2*.3=
<gadget id="calculator">2*.3</gadget>
<output>0.6</output>
.6 hours less than the drawing.
So it takes 2-.6=
<gadget id="calculator">2-.6</gadget>
<output>1.4</output>
1.4 hours per picture.
So it takes him 2+1.4=
<gadget id="calculator">2+1.4</gadget>
<output>3.4</output>
3.4 hours per picture.
That means it takes 3.4*10=
<gadget id="calculator">3.4*10</gadget>
<output>34</output>
34 hours.

<result>34</result>