The Aquarius jewelry company determines that each production run to manufacture a pendant involves an initial setup cost of $200 and $4 for each pendant produced. The pendants sell for $12 each.

1. Express the cost $C$ of production in terms of the number $x$ of pendants produced.
   $C=$
2. Express the revenue $R$ in terms of the number $x$ of pendants sold.
   $R=$
3. Graph the revenue and cost on the same set of axes. (Find the intercepts of each equation to help you choose a window for the graph.) State the solution of the system.
   Solution Give the solution as an ordered pair.
4. How many pendants must be sold for the Aquarius company to break even on a particular production run?
   The must sell pendants to break even.