Vikki earnt 10 × $42 = $<<10*42=420>>420 in one week.
She then gets taxed $420 × 0.2 = $<<420*0.2=84>>84.
She also loses $420 × 0.05 = $<<420*0.05=21>>21 due to insurance.
Vikki also pays $5 in union dues.
In total Vikki loses $84 + $21 + $5 = $<<84+21+5=110>>110 because of deductions.
Her final total pay after deductions is $420 - $110 = $<<420-110=310>>310
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