Markum Enterprises is considering permanently adding an additional

$71 million of debt to its capital structure.Markum's corporate tax rate is

38%.

a. Absent personaltaxes, what is the value of the interest tax shield from the newdebt?

b. If investors pay a tax rate of

45% on interestincome, and a tax rate of

30% on income from dividends and capitalgains, what is the value of the interest tax shield from the newdebt?