Name the four fundamental forces of nature, the forces from which all others are derived

Gravitational Force - weak, long ranged (can act over very long distances) and always attractive. Electromagnetic Force - weak but long ranged. It can be either be attractive or repulsive. Strong Interaction - very strong, short ranged, attractive but can also be repulsive, holds nuclei together. Weak Force - weak and short ranged. It is the force responsible for radioactive decay.

$100. 125 x 0.20 = 25125 - 25 = $100