Okay, let’s tackle this. So Marine Charpentier has native French proficiency, which is valuable. She also has professional working proficiency in English, which is a plus. Limited Spanish proficiency might be less in demand. Location is Atlanta, GA, which is not a major hub for French or Spanish speakers. Education from Audencia Nantes Business School suggests she has some business acumen. Considering these factors, I estimate her rate to be around $45 per hour, which is lower than average for a business professional in the US, but reflects her language proficiency and limited experience.