To find out how much rope Bill has left, you can subtract the length of rope he cut away from the original length of rope he had.
Original length of rope: 19 meters
Length of rope cut away: 9.76 meters
Remaining rope = Original length - Length cut away
Remaining rope = 19 meters - 9.76 meters
Remaining rope = 9.24 meters
Bill has 9.24 meters of rope left.