Multiproduct Green Rider makes three types of electric scooters. The company's total fixed cost is $2,376,000,000. Selling prices, variable cost, and sales percentages for each type of scooter follow: Mod Selling Price Variable Cost Percent of Total Unit Sales Rad $2,200 $1,900 3,700 3,000 6,000 5,000 30 50 20 X-treme a. What is Green Rider's break-even point in units and sales dollars? Units Dollars Mod 0 $ 0 Rad 0 0 X-treme 0 0 Total 0 $ 0 b. If the company has an after-tax income goal of $2 billion and the tax rate is 50