What is the answer to -20+5p-7z

" -20 + 5p - 7z " is not a question, and it doesn't beg for an answer.
It's an expression that stands for a number. 

In order to determine what the number is, you need to know the
values of 'p' and 'z'.  And if either of those changes, then the value
of " -20 + 5p - 7z " immediately changes too.  So the whole thing is
a 'moving target'.

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good

The operation is suck a c@ck? !