Please, answer all prompts fully; this is an ESSAY STYLE exam designed to demonstrate depth of understanding; single sentence, single paragraph, and otherwise incomplete responses will not be accepted

Please, answer all prompts fully; this is an ESSAY STYLE exam designed to demonstrate depth of understanding; single sentence, single paragraph, and otherwise incomplete responses will not be accepted.   What is the difference between present and future value of a dollar?  Using an example you understand, explain the concept of the time value of money. […]