I need help with the following 4 questions for a project:

1.The ending cash balance at the end of March is significantly greater than the cash balance at the end of February.Identify the material causes of that difference.

2.Describe the relationship of the Cash Budget to the Sales Budget.

3.What role does Depreciation play in the Cash Budget?

4.Management requires a cash balance of $800,000 at the end of each month.Provide five reasons management requires a designated cash balance at the end of each month.