The operating costs, y, in thousands of dollars, to produce x personal CD players (x in thousands), at a manufacturing plant are shown in the table. Round the coefficients to one decimal place. If the revenue is $60 per CD player, at what level of production will the plant break even? Number of CD Players, x (thousands Operating Costs, y (thousands of dollars) 2 6 8 10 12 148 225 287 361 439 521