Conditional Formatting Help PLEASE!

Please help.

I am able to put on a conditional formatting onto one row but when I am trying to use format painter the formulas are not auto changing and for the life of me no matter what I am doing I cannot get it to work and don't really fancy doing it for each one as there are over 500 rows (and growing)

What I am trying to do is if the date in column B is 4 or less days that column A for the box to turn green and if it is over 4 days to turn red.  And then if column C is 16 or less days that column B Green and if it is over 16 days to turn red.......