Could you answer the following finance question please?

4. a. (8 points) The In-Tech Co. just paid a dividend of $1 per share. Analysts expect its dividend to grow at 25 percent per year for the next three years and then 5 percent per year thereafter. If the required rate of return on the stock is 18 percent, what is the current value of the stock? b . (8 points) Project Y has following cash flows: CO = -800, C1 = +5,000, and C2 = -5,000. Calculate the IRRs for the project. C. (8 points) A firm has a general-purpose machine, which has a book value of $300,000 and is worth $500,000 in the market. If the tax rate is 21 percent, what is the opportunity cost of using the machine in a project? d. (9 points) Stock M and Stock N have had the following returns for the past three years: 12 percent, -10 percent, 32 percent; and 15 percent, 6 percent, 24 percent, respectively. Calculate the covariance between the two securities. (Ignore the correction for the loss of a degree of freedom.)