what pot odds do i need to play trash hands

[Eric P]

My question is mostly about calling from the BB. Online i just had 9-1 to call a raise (1 riase, 5 people) and it will not be raised again somewhere around 95% of the time. Should I have called with 4-8o? Should i call with 7-2? If you call a "monster" 2 pair or better, how often will i flop this, note, this needs to not include when the board has pairs on it, unless they are 7'2 or 2's. thanks