Amountain is 12,408 feet above sea level, and a valley is 175 feet below sea level. what is the difference in elevation between the mountain and the valley?

The difference of 12,583 feet in elevation between the mountain and the valley.

Step-by-step explanation:

Given:

A mountain is 12,408 feet above sea level, and a valley is 175 feet below sea level.

Now, to get the difference in elevation between the mountain and the valley.

As mountain is above sea level = 12,408 feet.

And valley is below sea level = 175 feet.

So, by adding we get the difference in elevation between the mountain and the valley:

Therefore, the difference of 12,583 feet in elevation between the mountain and the valley.

b and c

step-by-step explanation:

noncoplanar points are points that do not lie on the same line.