1. I really do not understand what it is saying:

     

    "No Return Values Not each function . . .  "  What 'No Return Values'?  

     

     

     Also it was pretty easy to replace the return converted with print(converted) and just call the convert... fn. like we did the hello() fn.

    I really do not understand what it is saying:

    "No Return Values Not each function . . .  "  What 'No Return Values'?  

    "No Return Values" was supposed to be a section heading. I'm not sure why it got incorporated into that paragraph instead. I will add it to the Errata.

     Also it was pretty easy to replace the return converted with print(converted) and just call the convert... fn. like we did the hello() fn.

    Be careful when you do things like that in your own development. The two operations are conceptually different. In the first case, the purpose of the hello function is to print out "Hello World." The conversion function's purpose, on the other hand, is simply to convert Celsius -> Fahrenheit. What you do with the converted temperature (print it out, use it in a calculation, etc.) is entirely up to the code that calls the function.