You can write it as 4*N or 4N.
For n=number 12xn, (12)(n), (12)n, 12(n), or 12n
"n divided into 3" = 3/n
24
42
12n > 36 n > 3
A product of 3 and N would be 3 and N multiplied together, so the product would be 3N. To get a numeric answer, you would first need to find what the value of N is.
You can write it as 4*N or 4N.
3n-7
If your number N is equal to N = w*x*y*z, then you could also write it as N = a*y*z, where a = w*x.
5n
For n=number 12xn, (12)(n), (12)n, 12(n), or 12n
"n divided into 3" = 3/n
* n=15
n x 1 = n
24
3 x 3 = 9