Hi!

Welcome to PlentyofTutors!

Sorry that your question did not get answered.  We are currently in the process of hiring tutors from all over the world to handle harder, more involved questions like yours.

In about a week's time we will have fully implimented our new system that still allows you to post questions and get answers for free, but also allows you the option to have qualified tutors bid on your question.  This way, if you don't get an answer for free, you will have the option to pay for help from a qualified professional.

Please revisit us in about a week to check out the new changes.

Thanks and have a great day!

PlentyofTutors Team