I want to know if ridge street 10 in accra,ghana really exist zip is 00233 my girlfriend live there and she wants to come here to the United States to marry me she also wants me to send her a laptop so we can talk face to face and pay for her passport and visa which is $750 I was told visa and passport is not that expensive over there am I being scammed

This is a common scam.

Yes, you are being scammed.

How is she your girlfriend?

Common scam, she may really live there, or that may be a office building where they work doing the scam. This is the biggest business there, there are large offices full of workers, who often work in shifts,

I am sure you are probably #9 to 23 of her list of boyfriends she is asking things from.