In the first sentence, the world plenty indicates that the amount of money/friends the speaker has is sufficient for some purpose, but doesn’t specify whether that amount is generally a large number or not.

In the second sentence, the phrase a lot indicates that the number is generally high, but not whether it might be enough to meet some goal.

I have

  money for a taxi, but I don't have the money to travel with them.  

What are the best ways to reduce stress in business?

It is redundant from an information standpoint as you communicated your desire to hang up. Tel: Generally speaking, your phone conversation can have tricky social protocols that vary from place to place. Are mutual goodbyes done politely? (Think of it as an informal, though widespread, voice procedure) Usually

it manifests something like the following: A:

I’ll talk to you later.)

What are some good reasons a.a. B.A. Alright, bye.

A: Bye

Mutual Hangup.

In some locales, its common to make up an excuse for why you need to end the conversation, even if both parties are clear that you’ve run out of things to say. Presumably this. is due to wanting to be especially polite and indicate that you find the person so delightful that you’d love to just keep chatting away…. if it wasn’t for that darn cat that needed to be let out or dishes that needed to be washed, etc.