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 $49,880. Variable Cost Type of Return Sales Mix Fee Charged per Return Easy Moderate 10% 10% $40 $ 20 100 60 Business 808 240 140 (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