“I used to work at a college and everyone thinks that textbook prices are determined by the college, but they are not. They are determined by the publisher and we have no say in it. We weren’t allowed to tell this to the students, and I have no idea why.”
its not that hard. use google. search frequently used passwords.
Binned is a term in England for thrown out/ash canned/ etc.
How do you not know what "binned" means? Rubbish bin. It's in the name...
And by context of the rest of the paragraph alone it's obvious they mean it's thrown away...