Need help with 1 and 2 if correct will rate

Multiple Choice (2 points each) 1. Which of the following equations is equivalent to the contribution margin ratio? a. 1- (Variable Costs/ Sales) b. (Variable Costs-1) Sales c. (Sales - 1)/Variable Costs d. Sales x (1 - Variable Costs)/ Variable Costs 2. Which of the following statements best explains the concept of "relevant range"? All costs behave in the same manner, regardless of the level of production. Management focuses mainly on how costs behave within the levels of production that are reasonably likely to occur. Over a large enough range of production, all costs are generally considered fixed. a. b. c. er a small enough range of production, all costs are generally considered variable. Use the following information to answer the next two questions: Speedy Shipping is a trucking comnany thatt ra n snorts