1 Compute the present value of interest tox shields generated by these three dubt issues. Consider corporato tres onty Assume that the marginal tax rate is Te0.40 14 a. A $1200, one year loan at 9% (Do not round Intermediate calculations. Round your answer to 2 decimal places.) PIN b. A seven year loan of $1.200 at 9%. Assume no peincipal is repaid until matarly. Do not round Intermediate calculations. Pound answer to 2 decimal places.) Present value C. A $1.200 perpetuity at 8% value