lpm corp. produces and sells two types of frozen burgers, turkey burgers and veggie burgers. in the most recent month, the firm sold 12,000 turkey burgers and 8,000 veggie burgers. turkey burgers sold for $14.00 per box and variable costs were $7.40 per box. the veggie burgers sold for $16.00 per box and variable costs were $8.25 per box. the fixed expenses of the entire company were $41,160. if the sales mix were to shift toward the turkey burgers product line with total sales volume remaining constant at 20,000, the overall break-even point for the entire company: