To calculate the actual distance between Janet's home and her office, given the map scale factor of 1 inch = 5.6 miles and a map distance of 4 inches, you can use the following formula:
Actual Distance = Map Distance × Scale Factor
Actual Distance = 4 inches × 5.6 miles/inch
Actual Distance = 22.4 miles
So, the actual distance between Janet's home and her office is 22.4 miles.