Billy decided he wanted to hang his new painting of a locomotive in his bedroom, he had the perfect spot picked, right above the cat tree in the corner of his bedroom. He held the picture up to the wall finding the perfect spot and marked the center of it with a pencil so he knew where the nail should go. Billy then went to his hallway closet where he had a small dresser where he kept his tools and he picked up a hammer, a nail, and a level. Billy then gently tapped the nail into the wall with the nail angled upwards a little to help hold the picture in place with his hammer being careful not to tap the nail in to the wall too far as it would've been hard for him to pull out. He then hung the picture on the nail and used the level on the bottom of the picture so he could make sure the picture was straight on the wall. Billy then stood back and admired his new painting of a locomotive he's wanted for a long time.
how long did it take to put up?