Riverbend Incorporated received a $332,500 dividend from stock it held in Hobble Corporation. Riverbend's taxable income is $2,260,000 before deducting the dividends-received deduction (DRD), a $81,000 NOL carryover, and a $128,000 charitable contribution. Use Exhibit 16-7. Note: Round your tax rates to 2 decimal places. Leave no answer blank. Enter zero if applicable. Required: a. What is Riverbend's deductible DRD assuming it owns 10.5 percent of Hobble Corporation? b. Assming that it owns 10.5 percent of Hobble Corporation, what is Riverbend's marginal tax rate on the dividend after taking the DRD into account? c. What is Riverbend's DRD assuming it owns 50 percent of Hobble Corporation? d. Assming that it owns 50 percent of Hobble Corporation, what is Riverbend's marginal tax rate on the dividend? e. What is Riverbend's DRD assuming it owns 93 percent of Hobble Corporation (and is part of the same affiliated group)? f. Assming that it owns 93 percent of Hobble Corporation (and is part of the same affiliated group), what is Riverbend's marginal tax rate on the dividend?