Master Budgeting and `flexible budgets

Please answer the questions below completely and explain your answers.

1. Explain the components of a master budget and examine how managers use a master budget in decision making.
2. Explain and examine the process of preparing one of the following budgets: (a) production budget; (b) direct materials budget; or (c) direct labor budget.
3. Compare and contrast between a flexible budget and a static planning budget.
4. Distinguish between revenue variance and spending variance.  Give examples of each variance.