Answer:
The final position of the bait relative to the surface of the water is:
10 feet above the surface of the water
Explanation:
Owen is fishing from a dock. 
He starts with the bait 2 feet below the surface of the water. 
He reels out the bait 19 feet.
i.e. 19-2=17
so, he will be 17 feet above the surface of water 
Then reels it back in 7 feet. 
17-7=10
so, he will be 10 feet above the surface of the water
Hence, the final position of the bait relative to the surface of the water is:
10 feet above the surface of the water