Answer:
Rhonda should be thinking that the state income tax deduction was in excess by $4.89
Explanation:
The state income tax withholding should have been 21% of the her federal income tax withholding of $122.25
The expected state income tax withholding=21%*$122.25=$25.67
The actual amount deducted for state income tax is $30.56 which translated into excess deduction of $4.89.
The actual deduction was 25% of federal income tax ($30.56/$122.25)