Answer:
14-7v
--------
v
Step-by-step explanation:
i dont understand what else the answer could be, due to the fact that not enough information if provided to result in a solid sum.
For this case we convert the mixed numbers to fractions:
Dwight:
Mike:
It is observed, that in fact, Mike takes more time to travel the road.
We subtract to know how much more time it takes Mike:

So, Mike takes
hours more than Dwight to walk the road.
Answer:
Mike takes
hours longer than Dwight to walk the road.