Jane is organizing a fundraiser to buy a ping-pong table for the community center. the table costs $500. jane is asking contributors to pay for an equal share of the cost of the table. she already has five contributors lined up who have offered to pay for two shares each. what function models the cost per share, c, with respect to the number of new contributors, n? how many new contributors must jane recruit in order for the cost of each share to be $20.00?