Well, Alaska has one, (Kenai Fjords, excellent place) there are plenty in Norway, if that's what you're asking.
Answer: $ 1530.
Justification:
Disposable income is
the amount of money available for spending and
saving after taxes have been paid.
So, disposable income = monthly wages + goverment transfers - income and sales taxes
=> disposable income = $1500 + $200 - $ 170 = $1530
Warm hot tempatures, rainey days due to evaporation and no winter