Mr$.$ and Mrs$.$ K$\text{'}$s AGI was $$26,000,$ all earned income. They are both $40$ years old. Their federal

income tax withholding was $$850.$ They had no itemized deductions and two qualified children, ages

$14$ and $15.$ If they are entitled to a $$6,604$ earned income credit and $$3,200$ of refundable child tax

credit, compute their tax refund. Include the refundable child tax credit, the earned income tax credit,

and the federal income tax witheld in computing the tax refund.