Answer:
2√2 miles is the difference in the distance which Addison can see more than Kaylib.
Explanation:
Kaylib's eye-level height is 48 ft above the sea level and Addison's eye -level height is

Formula to calculate the distance they can see has been given as

where d is the distance they can see in miles and h is their eye-level height in feet.
For Kaylib



For Addison



Now difference in
will be

= 2√2 miles