NFHS Double Foul

[BktBallRef]

Difficult to say from your description.

First, this isn't a double foul, this is simultaneous fouls. Next, if the shot was in flight when A2 fouled, the basket counts if the shot goes. It doesn't matter whether it had gone through the basket or not. If the shot is good, give the ball to Team B for a baseline throw-in. If you rule the shot had not been released before A2's foul, give the ball back to A.