3. What is market price of the four year US government bond with a par value 1000 USD and a coupon payment 40 USD if the market interest rate is 5 percent? 4. ABC Share has returns for the first Year 5 USD, second year 10 USD and third year 15 USD. Calculate the standard deviation and variance of ABC share returns. 5. What is the WACC of a firm if a debt and equity ratio is 70% and 30%, respectively; the cost of debt is 10 percent and the cost of equity is 20 percent and tax rate is 20 percent? 6. The Project requires initial investment of 100 million USD and prodnced a constant cash flov of 10 million per year forever. The WACC of the firm 8 percent. Calculafe the net present value of the project