Trek Cycles manufactures and sells bicycles to retailers. The X-1 model sells for $500 and has per-unit variable costs of $300 associated with its production. The company has fixed expenses of $30,000 per month. In May, the company sold 300 of the X-1 model bikes. Show your calculations for full credit. 1. Calculate the contribution margin per unit for the X-1. 2. Calculate the contribution margin ratio of the X-1. 3. Prepare a contribution margin income statement for the month of May. Show your calculations for full credit