all 3 please!

The independence hypothesis is one of the theories explaining a firm's capital structure. Which of the following statements is correct concerning this theory? O the value of the firm increases as it takes on more debt because of the tax deductibility of interest the firm's cost of capital and firm value are not affected by the amount of leverage the value of the firm decreases as the firm takes on more debt because of the risk of bankruptcy O the firm's value is affected by how much debt the firm uses Neptune Corporation's bonds have 15 years to maturity and a coupon rate of 9%. Interest is paid semi-annually. The bonds sold at par value, but the firm paid flotation costs amounting to 4% of par value. The firm has a marginal tax rate of 21%. What is the firm's after-tax cost of debt for these bonds? O 5.68% 9.51% O 6.79% 09.0% 0 7.51% Neptune has just announced a 50% stock dividend. Which of the following statements is correct? The stock price does not change because the firm's value is not affected by the stock dividends The price of each share decreases and the number of shares outstanding rises with the firm's market capitalization unchanged O The stock price increases because this stock dividend improves the investors' expectations concerning their future cash flows O The price of each share increases as this dividend increases the firm's market capitalization