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Required Information

$[$The following information applies to the questlons displayed below.$]$

This year Lloyd, a single taxpayer, estimates that his tax llability will be $$13,000.$ Last year, his total tax liability was $$17,000.$

He estimates that his tax withholding from his employer will be $$9,700.$

a$.$ How much does Lloyd need to Increase his withholding by $($for the year$),$ In order to avold the underpayment penalty?