Wilson Company has $100,000 in an investment paying 6 percent per annum. Each year Wilson incurs $1,200 of expenses related to this investment. Compute Wilson's annual net cash flow from this investment assuming the following. a. Wilson's marginal tax rate is 10 percent and the annual expense is not deductible. b. Wilson's marginal tax rate is 35 percent and the annual expense is deductible. c. Wilson's marginal tax rate is 25 percent and one-half of the annual expense is deductible.a