Question 1: What are mnemonic variable names? Why is a good practice to use them?

The mnemonic variable names are usually the names that we use for the variables in the code and which are for the reader's or coder's memory aid. I believe instead of naming the coming variavle as x,y or somethin else, we must name it with a releted word that could easly with associated with the value it holds. I also believe that once we would be in coding for sometime we would have to write long codes which would have plenty of variables which would be interconnected and if we just randomly name them it would be a headace for us to read and understand our code.
So it could be said that the practice of using mnemonic variable names is important.

Use variables and suitable data types in python to solve the following. Add comments to explain why you did what you did. Use mnemonic variable names.