How much of the moon receive sunlight?

It depends on the position of the moon, but the every piece of the moon gets light just at different times.

The moon recieve sunlight half all the time.
We can't always see half, it's because the earth rotates around the sun, and the moon rotates the earth.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Ihave no idea what the answer is