Sheila and Joe Wells are married with two dependent children. During 2021, they have gross income of $99,800, deductions for AGI of $3,500, itemized deductions of $10,000 and tax credits of $2,000. The Wells' had $6,000 withheld by their employer for federal income tax. They have a total tax of Blank 1and an amount due/refund of Blank 2(Use the tax table in Appendix D) What is Blank 1 and Blank 2 answer? Please explain it step by step, Thank you.