Explain me how the the first row of this problem was found. Please I already solved it but want to learn how it was found! not the answers.

1. what was the operations to find the first row???

2. how do we know how much money to borrow in this case. Why 33,000?

3. how do we calculate the interest of the repayments?

4. How do we calculate the Ending Cash Balance?

------------------------------------------------------------------------------------------------------------------------------------------------------------- problem:

Garden Depot Is a retaller that Is preparing Its budget for the upcomIng fiscal year. Management has prepared the following summary of Its budgeted cash flows: The company's beginning cash balance for the upcoming fiscal year will be $20,000. The company requires a minimum cash balance of $10,000 and may borrow any amount needed from a local bank at a quarterly interest rate of 3%. The company may borrow any amount at the beginning of any quarter and may repay Its loans, or any part of Its loans, at the end of any quarter. Interest payments are due on any principal at the time it is repald. For simplicity, assume that interest is not compounded. Required: Prepare the company's cash budget for the upcoming fiscal year. (Repayments, Interest, and cash deficlencles should be Indlcated by a minus sign.)