Mona, a single individual, received $17,000 of dividend income, $40,000 of interest income from tax-exempt bonds, and $15,000 in Social Security benefits in 2019.

What is the taxable portion of Monas social security benefits?

Rania and Husam married filing joint return. They received $35,000 from their retirement account, $8,500 dividends income, $10,800 interest from municipal bonds, and $33,000 of Social security benefits for 2019. What is the taxable social security benefits?