explain the differences in variable costs fixed costs

Let’s roll with this discussion question…please explain the differences in variable costs fixed costs and mixed costs. Why do we need to categorize costs into these categories? Which costs adjust based on production and why?Please include references.

development method for human relations

development method for human relations 1.) Recommend a development method for each scenario below and explain exactly why one would use/chose that particular method. a. An employee recently promoted to the job of plant supervisor is having difficulty motivating...