Answer
${$1,000}$ in taxes.
${$4,000}$ after tax for health insurance.
Work Step by Step
Vanessa will be forced to pay 20% of her ${$5,000}$ raise in taxes, so she will have to pay
$5,000\times 20\%={$1,000}$
in taxes, and therefore will have
$5,000-1,000=\$4,000$
after tax to pay for health insurance.