per year

$($a$)$ What is the weighted average cost of capital $($W ACC$)$ for a construction company that finabee an expansion project using $40,$ retainel carmings and $60,$ as debt caputal? Avome the interest rates are $10\%$ for equity financing and $16\%$ for detot firmancing

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$($b$)$ A small company wants to make a single deposit now so it will have enough money to purchase an equipment costing $$100,000$ three years from now $($Future value$).$ Determine the amount that must be deposited now $($Present value$)$ using $20\%$ interest rate

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