Applying the high-low method, Bemidji Wilderness Resort estimates the total costs of providing guide services to be $9,800 per month, plus 30 percent of guide service revenue. a. What is the contribution margin ratio of the resort's guide service operations? b. How much guide service revenue must the resort generate for its guide service operations to break even? c. What is the resort's expected total cost of providing guide services in a month for which guide service revenue is $80,000? a. Contribution margin ratio b. Break-even service revenue c. Expected total cost %