Waller, Inc., is trying to determine its cost of debt. The firm has a debt issue outstanding with 8 years to maturity that is quoted at 92 percent of face value. The issue makes semiannual payments and has an embedded cost of 12 percent annually. Note the embedded cost refers to the coupon rate. Required: What is the company's pretax cost of debt as an APR? (Do not round your (a)intermediate calculations. Note: the pre-tax cost of debt is the cost of debt before the tax is taken out of it). (Click to select) (b)lf the tax rate is 36 percent, what is the after-tax cost of debt as an APR? (Do not round your intermediate calculations.) (Click to select)