Greetings!
Yes, the degree on a monomial can be negative:
Example:

This is equal to:

Hope this helps.
-Benjamin
 
        
             
        
        
        
B because they are equal parts
        
             
        
        
        
Answer:
Step-by-step explanation:
3.5 miles/(29.4 minutes) 
26 miles × (29.4 minutes)/(3.5 miles) = 218.4 minutes
218.4 minutes × (1 hour)/(60 minutes) = 3.64 hours