Net worth is equal to assets minus liabilities. which event will have the greatest impact (positive or negative) on one's net worth?

The answer would be: Go on a vacation that costs $3,500 

Paying off money for buying a car will not decrease your net worth as you get the car as assets for the money you use. But the depreciates 20% will cause you to lose $3,000 assets. Assuming you are not buying assets at all, go on a vacation that costs $3,500 will increase liability without any effect on assets. Paying up bills will decrease your asset but it also decreases your liability so the net worth wouldn't change. 

Answer domain name system (dns);

Show some of the scenarios and ill