Break-even sales revenue for the multiple-product company can be calculated by: dividing total fixed cost by the overall contribution margin ratio. dividing total fixed cost by the overall variable cost ratio. dividing total fixed cost by the sales mix ratio. dividing total fixed cost by the operating leverage ratio. Head-First Company sells both bicycle helmets and motorcycle helmets. Next year, Head-First expects to earn total revenue of $450,000, of which $300,000 are expected from the sale of bicycle helmets and $150,000 from the sale of motorcycle helmets. Total variable cost and fixed cost are expected to be $270,000 and $120,000, respectively. To break even, how much revenue must be generated by selling bicycle helmets? $180,000 $133,333 $200,000 $300,000