What is the missing number in the pattern?

72

Step-by-step explanation:

I've done this question before on a test, and the dots are diaginal every 2 spaces.

my answer got deleted but it's a

step-by-step explanation:

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)