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For your hover text you'll want to use the following:

If you want the $ before the numbers, make sure to set the value you're using on your Y Axis to be formatted as currency.

As for your Weeks. It would depend on what the raw data looks like, but you could do something like this:

https://stackoverflow.com/questions/7078730/how-to-convert-number-of-week-into-date 

Hope that helps,

Valiant