It means to split something evenly.
(0.5) x (0.5) x (50) = 50/4 = 12.5
50 plus 50 plus 50 equal 150
5 - 0: Slang for police officers and/or a warning that police are approaching. Believed to be derived from the fact that some Police Interceptors use highly modified 5.0 Liter engines. Derived from...
200/2=100%