Thứ Ba, 29 tháng 9, 2015

Remember Your Old Graphing Calculator? It Still Costs a Fortune - Here's Why


Remember Your Old Graphing Calculator? It Still Costs a Fortune - Here's Why
This year, high school juniors and seniors will buy a $100 calculator that's older than they are.

September 28, 2015 at 09:35PM
via Digg http://ift.tt/1QIst5S

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