Helpfulness

1: I need help.
2: Okay, what do you need?
1: The answer I got doesn't make sense..
2: What is the question asking?
1: To find the min. and max. for Barry's walkie talkie's range.
2: I see. Barry.
1: But somewhere in the equation I messed up.
2: Well, where did you mess up?
1: I don't know.
2: Your answer is impossible. Take it out, it doesn't fit.
1: (stares blankly)
2: Do you understand?
1: No.
2: Do you need help?
1: Yes, that would be nice.