Please help me for my homework! Be careful when solving problems. I really need the right answers

1- Net asset value (NAV) of an investment fund is calculated as total portfolio value divided by number of fund shares. Accordingly, if the total portfolio value is 100.000 $ and the number of shares is 55.000, then the NAV would be 100.000 $/55.000 = 1,818 $. Now, suppose that you are a portfolio manager of a bond fund that has 20.000 fund shares outstanding. You consider 3 investments for your portfolio: (a) A T-bill that has a 194 day maturity with a face value of 10.000 $. (b) A zero-coupon bond that has a 10 year maturity with a face value of 100.000 $. (c) A bond that pays quarterly coupon payments with an annual coupon rate of 12%, a face value of 50.000 $ and a maturity of 5 years. You know that the annual market yields are 10%. If you invest them all right now, what would be the NAV of your fund at the time of investment? (1 year = 360 days) a) 1,853 $ b) 4,715 $ c) 4,901 $ d) 5,096 $ 2- Suppose that the effective annual rate of return for a t-bill investment is 9,90%. This t-bill has a 60 day maturity and a face value of 1.000 $. What is the discount yield for this particular t-bill? (1 year = 360 days) a) 9,37% b) 9,27% c) 9,47% d) 9,57%