SportZLimited sponsored an evening session of skating at the local arena. A family pass is offered, whereby a parent and up to two children are admitted for $12. Free hot chocolate is provided to those with the family pass. The rental of the arena for each of these sessions costs $1,000. Hot chocolate costs $0.50 per person. Estimated capacity for the skating rink is 500 people. a.If only family passes are sold, and each includes a parent and two children, how many family passes must be sold to break-even?