some ideas on what to charge...

[thebeginning]

I'm going to be editing some photos for someone that is writing a high-school textbook. She has some photos from rome (it's a latin textbook) that a friend took for her a while back and she wants me to enhance them for her. Unfortunately i dont know how many photos she has, which makes it hard for me to know what to charge her. Can you guys give me an estimate of what would be a good range for me to look into charging? Im suspecting that it will be done by photo, not by the hour. She's a friend of hours so i dont want to charge alot, but she said she'd be willing to pay me a 'good amount', or whatever a beginning retoucher would get paid. unfortunately, i have no idea what that is.