Final Question of Module 3 Quiz Explanation?

Question

My understanding of this one is a little fuzzy - how does out work? Can somebody break down this question and answer? Thanks!

Answer 1

I'm doing this test right now and I also confuse, I don't find the answer :s

Answer 2

Oh I found it!
The variable z get the value of the return while at the same time the variable a get the value of x from the function Test, because the Out link a from Main to X from Test.
Then you have z = the value of return
a = 6
Left the final calculate.