if n=30 and p=.23 what is P(20,x,23)= and P(x.23)=

I think I need to find the z scores in order to solve but how do I read the table or do I even need it. UGH! so confusing especially 20 years later.

A good interactive Z table site is

http://davidmlane.com/hyperstat/z_table.html

You can play around there with various ideas, and compare the results with your Z table.