The net worth of an individual is calculated as the difference between their total assets and their total liabilities.
Before the signing bonus and student loan payment, the net worth of the college graduate can be calculated as:
Net worth = (Furniture + Car Value + Equipment + Savings Account Balance) - (Car Loan + Credit Card Balances + Student Loans)
Net worth = ($4,091 + $21,500 + $4,805 + $2,143) - ($6,060 + $3,940 + $29,400)
Net worth = $32,539 - $39,400
Net worth = -$6,861
This means that the college graduate has a negative net worth before the signing bonus and student loan payment.
After the signing bonus and student loan payment, the new net worth can be calculated as:
New net worth = (Furniture + Car Value + Equipment + Savings Account Balance + Signing Bonus) - (Car Loan + Credit Card Balances + Student Loans - Student Loan Payment)
New net worth = ($4,091 + $21,500 + $4,805 + $2,143 + $10,000) - ($6,060 + $3,940 + $29,400 - $25,000)
New net worth = $42,539 - $14,400
New net worth = $28,139
Therefore, the college graduate's new net worth is $28,139. The answer is option (D).