It could be: 21n2-4
One way or another
82
Regular Expression is another way of implementing a lexical analyzer or scanner.
additional cost
That one, there!
That Would Be 300k
162 = 256
X and o
32 = XXXII
It means another way of expressing precisely the same thing.
The answer depends on what the first way is. I would suggest -25
6/12 = 1/2