@UMich4567. Michigan is hard. Buts it’s hard for everyone. The "A"s will be tougher depending on what she is thinking of majoring in. As I told my kids, college is not about grades but about learning… Unless your premed then it’s all about the grades.
The support foundation at Michigan is what you would expect it to be. Math /science help session. Peer to peer help. Learning centers. Professors hours and so on. There is no excuse not to do well at Michigan. Just don’t expect all “A” a.