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Break-even analysis for a service company Sprint Nextel is one of the largest digital wireless service providers in the United States, In a recent year, it had approximately 32.5 milion direct subscribers (accounts) that generated revenue of $35,345 million. Costs and expenses for the year were as follows (in millions): Assume that 70% of the cost of revenue and 30% of the selling, general, and administrative expenses are variable to the number of direct subscribers (occount In part (a) and (b), round all interim colculations and final answers to one decimal place. a. What is Sprint Nextel's break-even number of accounts, using the data and assumptions given? X milion accounts b. How moch revenue per account would be sufficient for Sprint Nextel to break even if the number of accounts remained constant? x milion per account