CFS runs a fund-raising sports day each year to support the regions youth soccer program. It costs CFS $500 to rent a facility and $1,500 for promotional materials. In addition, CFS spends $10 per person for food at the fund raiser. If tickets are $25 each, how many people have to attend the fund raiser for CFS to raise enough to give $25,000 to the youth-soccer program? (use the space below for solving)