Can you please help and show work for calculations?

The company has the following capital structure:

Account	$	Costs before tax
Long-term Debt	2,000,000	10%
Preferred Stock	500,000	14%
Common Stock	2,500,000	18%

1. Calculate the weighted average cost of capital (WACC) with a tax rate of 36%.
2. Using the same cash flows in exhibit I find the NPV, PI, IRR and MIRR (Use the WACC you have computed above). Which project(s) would you recommend and why (show your calculations)?

Exhibit I

Sum of cash flow
benefits	$ 3,310.00	$ 7,165.00	$ 9,000.00	$ 3,561.00	$ 4,200.00	$ 6,200.00	$ 4,560.00	$ 4,150.00
Excess of cash flow
Over investment	$ 1,310.00	$ 5,165.00	$ 7,000.00	$ 1,562.00	$ 2,200.00	$ 4,200.00	$ 2,560.00	$ 2,150.00