Answer:
Option C. 347 miles
Explanation:
Adam recorded the miles he traveled each day while traveling from Florida to California.
We have to calculate the average rate of change between day 4 and day 6.
As we know average rate of change of distance is represented by
Average rate of change = Distance covered ÷ Time taken to cover the distance
Now we come to the question
Rate of change between 4th and 6th day =

Approximate rate of change = 347 miles
Option C. 347 miles is the answer.