Discussion
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The solution is
Posted: 03/15/2012 16:08
I guessed on the second and third problems. I don't understand. Please explain.
Posted: 03/15/2012 17:19
Maggie, please be more specific. We don't know which problems you are stuck on, i.e., the problem set / package. Did you know you can just tap on the discussion icon at the top when you are inside a problem, and post a question?