Questions on 4 Situations

[Scooby]

I was working 7th grade football and there were 4 situations that caused many complaints. I believe that I got then all correct. Fed rules.

Sit 1. 1st and 10 on the 25. A1 pitches the ball to A2 who rolls out and passes the ball and then is hit by B1, the pass was incomplete. I called roughing the passer on B1. ½ the distance and auto 1st down.
Coach's complaint is that Roughing the passer cannot be called because A2 is a running back.
Rule 2-32-11...A passer is a player who throws a legal forward pass. He continues
to be a passer until the legal forward pass ends or until he moves to participate in the play.

Sit 2. 1 and 10 on the 15. A2 is tackled by the face mask on the 14. I rule 15 yard face Mask penalty and 1/2 distance to the 7, 1st and 2 on the 7.
Coach wanted automatic 1st down.
Only Roughing passer, kicker and holder, snapper and defensive pass interference include automatic 1st down.

Sit. 3. 4th and 10 on the 40. K has only 6 men on the line of scrimmage and the clock is stopped. K1 kicks the ball to R1 who is tackled inbounds. R accepts the penalty for illegal formation. I start the clock on the ready for play.
Coach wants it to start on the snap because the play prior to the penalty the clock was stopped.
Rule 3-4-2 b3

Sit. 4. 1st and 10 on the 30 with 45 seconds left in the second quarter clock is running. B1 encroaches. 1st and 5 on the 35, clock starts on the ready for play. In my judgment B was not trying to consume time.
Coach wants the clock to start on the snap because "you can’t penalize us on their penalty."
Rule 3-4-2 b3

Did I get these right?