Agamemnon by Aeschylus

Please if possible can you answer these questions with a Yes or a No. If you don't know them all I would appreciate any information I can get. Thank you

1) Does Agamemnon bring Briseis as slave an lover to Argos?

2) Compared to Euripides' Iphigenia, is there is a greater participation of the chorus in Aeschyus' Agamemnon?

3) Does Cassandra foresee her own death ?

4) Was Clytemnestra faithful to Agamemnon when he was away?

5) Did Cassandra predict that there will be a vengeance for the murder of Agamemnon?