Question

2.

How likely is it that neighbors would be able to hear the old man's heartbeat? What
does this reveal about the narrator?||

Answer 1

It is impossible that the neighbor could hear his heartbeat the narrator isn't properly aware of his environment because he's going mad.

Step-by-step explanation:

Answer 2

I'm going to need a bit more information, buuuutttt

Step-by-step explanation:

Assuming that their head isn't against the old man's chest, it's very unlikely. Nearly impossible even, so that would go to say that the narrator is writing a fictional piece.