4. Firm E must choose between two alternative transactions. Transaction 1 requires a cash outlay of $9,000; this expense would be non-deductible in the computation of the firm’s taxable income. Transaction 2 requires a cash outlay of $13,500, all of which would be a deductible expense. Determine which transaction has the lesser after-tax cost, assuming: a) Firm E’s marginal tax rate is 20 percent. b) Firm E’s marginal tax rate is 40 percent.