Answer:
taxable income = $3,750
tax liability = $675
Step-by-step explanation:
Paige's total gross income = $3,900 + $4,100 = $8,000
minus standard deduction = earned income + $350 = $3,900 + $350 = $4,250
Paige's total taxable income = $8,000 - $4,250 = $3,750
now we must determine Paige's unearned taxable income = $4,100 - $1,050 - $1,050 = $2,000 ⇒ these $2,000 will be taxed at her parents marginal tax rate (using the 2017 tax brackets for married filing jointly, their marginal tax rate is 25%)
total tax liability:
$2,000 x 25% = $500
($3,750 - $2,000) x 10% (lowest bracket) = $175
total tax liability = $675