Long Beach Solar Systems, Inc. sells solar water heating and solar power systems. The business is divided into two divisions along product lines. Variable costing income statements for the current 2021 year are presented below: (a) Determine the sales mix and contribution margin ratio for each division. (b) Calculate the company's weighted-average contribution margin ratio. (c) Calculate the company's breakeven point in dollars. (d) Determine the sales level, in dollars, for each division at the breakeven point