Okay, let’s tackle this. So Tanya has 21 years of experience, which is a long time. Typically, experience is valued at $15-$30 per hour. However, her skills in phlebotomy and customer service are in demand, especially in healthcare settings. Location is Baltimore, MD, which might affect the rate. Considering her experience and skills, I'll estimate a lower rate, around $25 per hour, which is on the lower end of the scale.