Compute the present value of interest tax shields generated by these three debt issues. Consider corporate taxes only. Assume that the marginal tax rate is te=0.34 a. A $2,700, one-year loan at 9% (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value b. A seven-year loan of $2,700 at 9%. Assume no principal is repaid until maturity. (Do not round intermediate calculations. Round your answer to 2 decimal places.) Present value C. A $2,700 perpetulty at 8%. Present value