Problem 3-41 (LO 3-3) Required: Cari and Karina file a joint return, Karina earned a salary of $39,500 and received dividends of $3,120, taxable interest income of $2,060, and nontaxable interest of $1,030. Carl received $9,240 of social security benefits and a gift of $6,060 from his brother. What amount of social security benefits is taxable to Carl and Karina? Taxable social security benefits