The number that is not part of the solution set z/2 ≠ 6 is 12.
explain
In the inequality z/2 ≠ 6, we are looking for values of z that do not equal 6 when divided by 2.
If we substitute 12 for z, we get 12/2 = 6, which does equal 6. This means that 12 is not a valid solution for the inequality z/2 ≠ 6.
Therefore, 12 is not part of the solution set for the inequality z/2 ≠ 6.