question: The bananas at the supermarket cost $0.80 each, or a bunch for $3.00.  Jenny buys 10 bunches that average 4 bananas per bunch. How much money, in dollars, did she save by buying the bananas in bunches instead of individually?
answer: Ten bunches makes 10*3=$<<10*3=30>>30.
  There are 10*4=<<10*4=40>>40 bananas.
  40 bananas would cost 40*0.80=$<<40*0.80=32>>32 individually.
  She saved 32-30=<<32-30=2>>2 dollars
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