% Spherical Manufacturing recently spent 515 milion to purchase some equipment used in the manufacture of disk drives. This equipment has a CCA rate of 45% and Spherica's marginal corporate tax rate is 29% What are the annual CCA deductions associated with this equipment for the first five years? b. What are the annual CCA tax shields for the first five years? c. What is the present value of the first five CCA tax shields the appropriate discount rate is 10% per year? d. What is the present value of all the CCA tax shields assuming the equiment is never sold and the appropriate discount rate is 10% per year? .. How might your mower to part (e) change it Spherical anticipates that its marginal corporate tax rate will increase substantially over the next five years