Fg attempt botched what happens next???

[BoBo]

For some of the new guys just get your mind going.

Team A has 3rd and 7 at B's 20 yard line. Line of scrimmage)

Team A/K is in a scrimmage kick formation/field goal formation.

They decide to attempt the game winning field goal.

Holder A10 drops the snap and run out of bounds at B's 15 yardline.

1) whose ball and what down?

The kick by A-K3 is blocked and recovered by A55 at B's 15 yardline.

2) whose ball and what down?

The kick by A-K3 is blocked and recovered by A55 at B's 24 yardline.

3) whose ball and what down?