I got these rolls of quarters at the bank yesterday. They came shrinkwrapped, not rolled in paper. I'm new to this sort of thing so I have a few questions.

1. Are these mint rolls? How would I know?
2. Two of the rolls have a 2016 coin on one side and the other side shows the Queen. Should I assume that all the coins are 2016?
3. The third roll shows the Queen on both ends. So I have no way of knowing the year. (It's not 2017, I can tell because of the lettering on the coins.) Since the year(s) is unknown, what good is this roll? Is it better to open it up?