Answer
HeadBook can spend $\$1,000$ more on her insurance by buying it directly.
Work Step by Step
HeadBook buys insurance: $\$5,000$ goes directly to health insurance
Vanessa buys herself: $\$4,000$ goes to insurance
Difference = $\$5,000 − \$4,000 = \$1,000$
HeadBook can spend $\$1,000$ more on her insurance by buying it directly.