What are the advantages and disadvantages of the digital darkroom compared to a regular darkroom?

Which of these is a consistent periodic pulse separated into equivalent intervals of time?

In areas where even the experts disagree; everyone has a right to his own opinion. i mean if answers aren’t given just like in lots of things; then it has to be just anyone’s opinion. is this dualism multiplicity relativism or commitment

Using the correct order of operations, what does this formula equal? =(4-2)*6/2.