If a diver is 10 feet under water, how many feet does he need to move get to 5 feet above water

15

Explanation: you are ten feet under the water, you would need to go up 10 feet to be surface level and the other five above.

He needs to move 15 feet.

Explanation:

If you are ten feet underneath the water then you have to move 10 feet to reach the surface.

After you reach the surface you are at 0ft above or below the water. You must move 5 more feet to reach the point 5 feet above the water.

You add the ten feet to reach the surface and the five feet to reach the end point and you will get an answer of 15 feet.

if an attention line is required on a business letter envelope the united states postal service remmends placing it