If it takes 100,000 years for a plate to move two kilometers, how long will it take Los Angeles, on the edge of the Pacific Plate, to slide alongside San Francisco, which is 558 kilometers away on the North American Plate?

27.9 million years.

Step-by-step explanation:

If it takes a plate 100,000 years to move 2 kilometers, and you are calculating how long it will take to move 558 kilometers, you can divide 588 by 2 to get 279, then multiply 279 by 100,000 to determine how many years it will take. In this case, it will take the Pacific plate 27,900,000 years to slide alongside San Francisco.