Hally and her friends organized a high school reunion. To cover the cost of a late-night party that they planned for at the reunion, each attendee had to pay $100. After the party, Hally and her friends realized that the total expenses were $500 less than the total contributions. If there were 50 people at the party, how much money was used to pay for the party expenses? Think carefully first, then make a decision:
User
The total planned cost for the party was 100 * 50 = $5000. The total expenses for the party are 5000 - 500 = $4500. So, the answer is 4500.
Assistant