This account is probably worth $125-150, but don't expect to sell it on sythe for that much unless you feel extremely lucky or want to deal with 100 scammers before coming to the right one.
90% of the people out there who want to buy accounts are scammers, simply because they are under 15 and don't have the right paypal verification and amount to buy in a legit manner.
I'd say a reasonable amount to sell it at is $70-110.