Answer: The elements that are NOT in Set M are 2, 5, 6 and 8.
Step-by-step explanation: We are given the Venn-diagram in the figure.
We are to find all the elements that are NOT in set M.
That is, we are to find the complement of M, given by

Now, the elements in the universal set U and the set M are
M = {3, 4, 7, 9} and U = {2, 3, 4, 5, 6, 7, 8, 9}.
Therefore, we get

Thus, the elements that are NOT in Set M are 2, 5, 6 and 8.