23. Two years ago, a company issued $20 million in long-term bonds at par value with a coupon rate of 9 percent. The company has decided to issue an additional $20 million in bonds and expects the new issue to be priced at par value with a coupon rate of 7 percent. The company has no other debt outstanding and has a tax rate of 40 percent. To compute the company's weighted average cost of capital, the appropriate after-taxcostofdebt is closest to: A. 4.2%. B. 4.8%. C. 5.4%. 两年前发行的20M就不考虑在内了吗？

2. Which of the following statements is correct? A. The appropriate tax rate to use in the adjustment of the before-tax cost of debt to determine the after-tax cost of debt is the average tax rate because interest is deductible against the company's entire taxable income. B. For a given company, the after-tax cost of debt is generally less than boththecost of preferred equity and the cost of common equity. C. For a given company, the investment opportunity schedule is upward sloping because as a company invests more in capital projects, the returns from investing increase. B的说法严谨吗？也有债券融资成本很高的公司吧？

为什么选A题干不是说了 recognize as revenue吗

所以这里是选B是因为2－1等1，而不是表格中给了1对吗

老师好，这个专利既然有使用年限的话，折旧的时候用的总产量为什么不是40000x使用年份？

所以给historical cost的意义是什么

这块讲需不需要政府补贴的时候，为什么是定在marginal cost 上就需要政府补贴了？前面那个讲shutdown point，我感觉是在shutdown point和 breakeven point之间都需要政府补贴。

这里的1.5为什么不乘以1+g 不是d1/p0吗

这道题A和B是什么意思？

第3题，请解释答案