The answer is a included merchants and teachers
The answer is negative and positive acceleration
yes... i know a friend who was used by her bf... because he went through a lot of s.h.it problems... like his father was a d.ru.nk and when he failed to repay the money he borrowed from his friends... they came and r..a.p.e.d his mum. but right now... he's ok and stopped using my friend.
hope it helps...!!!