Anna is in charge of the alumni fundraiser for her alma mater. She is selling pre-sale tickets for $10 and at-the-door tickets for $25. The venue has the capacity to hold 400 people. The graph represents the number of tickets Anna needs to sell to offset her upfront costs and raise at least $5,000 for her school: Graph with x axis labeled pre sale tickets and y axis labeled at the door tickets. There are two lines intersecting at three hundred thirty three and three hundred thirty three thousandths comma sixty six and six hundred sixty seven thousandths.

What is the minimum number of at-the-door tickets she needs to sell to make her goal?