Please show work with formulas or excel

Pecking order hypothesis. Rachel can raise capital from the sources in the popup window: What is Rachel's weighted average cost of capital if she needs to raise a. $15,000? b. $20,000? C. $35,000? a. What is Rachel's weighted average cost of capital if she needs to raise $15,000? % (Round to two decimal places.) - Data table Click on the icon in order to copy its content into a spreadsheet. Source of Funds Interest Rate Parents 0% Friends 5.5% Bank loan 11.5% Credit card 16% Borrowing Limit $10,000 $ 3,000 $16,000 $ 7,000