Abubble originating at the bottom of a lake rises to the surface within 10.0 seconds with an acceleration of 10.0 meters/second2. what is the depth of the lake?

If the bubble travels 10 meters per second and it takes 10 seconds, then just multiply the distance per second by the total seconds to get the total depth.
10 • 10 = 100
The lake is 100 meters deep.

Think of it this way to clarify the
It takes a bubble traveling at a speed of 10 meters per second 10 seconds to travel 100 meters.

True.it is better to buy a washer with a higher efficiency rating

The correct choice is c