Ch 31 Sec 3 & 4 Notes, if you can't find the links to this HW

If you are missing these notes (I can't seem to find the original post), here are the links:

Sec 3:
http://mrsramo.blogspot.com/2015/02/global-ii-ch-31-sec-3-notes_7.html

Sec 4 (I know, it says 3 n the link, but it's really Sec 4):
http://mrsramo.blogspot.com/2015/02/global-ii-ch-31-sec-3-notes.html