Functions provide the ability to encapsulate and reuse sequences of code. The purpose of this discussion is to define a simple valuereturning function with a prototype. DQ Post - Provide a scenario of something you do on a computer which returns a value - Write the C++ value-returning function and function prototype for your scenario Understanding of the Scope and Lifetime of variables is a requirement to be effective in using functions and C++ in general. The purpose of this discussion is research online some descriptions of scope and lifetime of variables DQ Post - Find an online resource that discusses the scope and lifetime of variables in C++ - Provide the reference(s) to the resource - Post a summary of your understanding of scope and lifetime as defined by the reference