Answer:
Part a) James walked

Part b) The difference in distance each one walked is

Explanation:
we know that
The perimeter of a rectangle is equal to

step 1
Find the perimeter Park 1

Find the perimeter Park 2

To calculate how far James walked, sum the perimeter park 1 and the perimeter Park 2
so

step 2
James brother
Find the perimeter of the different park

step 3
Find the difference in distance each one walked
