To determine her miles per hour, you will first convert her pace of 0.08 commoners per minute to a number of kilometers per hour.
0.08 x 60 = 4.8 km per hour
Next convert her rate of 4.8 commoners per hour to a number of miles per hour.
4.8/1.61 = 2.99 Miles per hour
Tabitha walks approximately 3 mph.