Paul Nichols (pictured above) is a safety officer at VIMS. Before people can work in a lab, they must take a safety course from Paul. Here are some of the basic rules:

1. Wear a lab coat, safety glasses, gloves, and close-toed shoes in the lab.
   
   
2. Know the location of the emergency shower, the automatic eye wash, and the fire extinguisher.
   
   
3. Use a fume hood when working with chemicals needing ventilation.

Paul has many tattoos. Pictured to the right is one of them. (Not visible in this photo is another part of this tattoo: a chain going around Paul’s neck.) For a close-up look at this tattoo, click here.

Here’s the math question:

Paul said it took about 35 hours for this tattoo to be completed. The tattoo artist worked in segments, doing one complete part of the design at a time. He worked on this design in seven separate appointments. So, how long did each appointment last? How many hours or minutes did Paul spend each time the tattoo artist worked on this particular tattoo?