5. 8.15 Copper and nickel electroless plating processes are under consideration for printed circuit boards. The copper process has fixed costs of $110,000 per year with a variable cost of $50 per batch. The nickel process has a fixed cost of $85,000 per year and a variable cost of $90 per batch. Determine the number of batches that must be produced each year in order for the processes to break even.