R&R Tax Service offers tax and consulting services to individuals and small businesses. Data for fees and costs for three types of tax returns follow. Fixed costs total $40,000. Variable Cost Type of Return Sales Mix Fee Charged per Return Easy Moderate 20% sex $ 60 $ 50 190 Business 30% 460 110 280 (1) Determine the weighted average contribution margin. Weighted-average contribution margin (2) Determine the break-even point in units using the weighted average contribution margin. Numerator: Denominator: (3) Determine the number of units of each product that will be sold at the break even point. Easy Moderate Business units units units Break Even Units " Break even units