A university is planning to hold an event at a local venue, which will charge a fixed rental fee of $675 for the event plus $18.40 per guest for food. The university has budgeted $920 for administrative and marketing expenses. It plans to hire a band, which will cost another $510. Tickets are expected to sell for $41.80 per guest. Ignore taxes. How many tickets must be sold if the university plans to raise $5,060 in net cash flow from this event? 299 307 315 322 330