We have been given that Marlon is standing 2 feet to the left of Sara. Dave is standing 6 feet to the right of Sara. Nicole is standing 4 feet to the left of Dave.
It means that Marlon is standing 8 feet to the left of Dave.
Now, we have been given that Nicole is standing 4 feet to the left of Dave.
So, we must subtract the distance between Marlon and Dave to the distance between Dave and Nicole to find the distance between Nicole from Marlon.
Hence, 8 - 4 = 4 feet
Therefore, Nicole is 4 feet far from Marlon.