.... Windham Weapon... Ruger AR-556 55... Century Arms MIC... GImage result for h... 5 Question 13 Using information in the textbook and, if needed, Form 1040 instructions from irs.gov, calculate the taxable amount of social security. John and Jean are married filing jointly. They had the following amounts of income for 2018. Taxable interest income $10,000 Non-taxable interest income $20,000 Pension income $15,000 Social security benefits $30,000 O $0 O $15,000 $19,600 O $25,500