To convert 72 feet per day to a different unit, we can use unit conversion factors:
1 day = 24 hours
1 hour = 60 minutes
1 foot = 12 inches
So, we can set up the following calculation:
72 feet/day × (1 day/24 hours) × (1 hour/60 minutes) × (12 inches/1 foot) = 0.1 inches/minute
Therefore, the converted rate is in units of inches per minute.
Answer: (4) inches/minute