Answer:
 220km
Step-by-step explanation:
Given parameters: 
Distance traveled from Minnehaha to Nut Plains = 11km 
Distance traveled to Dover = 209km 
Unknown: 
The distance the soft drink distributor traveled = ? 
Solution: 
To solve this problem, we must understand that distance is the total length of path covered in a journey. 
 So; 
 Distance = 209km + 11km = 220km
The soft drink distributor covered 220km