Business J operates in a jurisdiction that levies an income tax with the following rate structure: Business J has the opportunity to invest in a project that should generate $30,600 additional taxable income for the year. Required: a. Compute the tax cost of the additional income assuming that business J's taxable income before considering the additional income is $115,750. b. Compute the tax cost of the additional income assuming that business J's taxable income before considering the additional income is $490,000. c. Compute the tax cost of the additional income assuming that business J has a $16,200 loss before considering the additional income