Martol, Inc. has fixed costs of $102,500 and a contribution margin ratio of 25%. How much sales revenue must be earned for a profit of $63,000? Multiple Choice $82.750 $331,000 $662,000 $332.000 Ironwood Inc. has a variable cost ratio of 60% and fixed costs of $90,000. What sales revenue is needed to generate a $120,000 profit? Multiple Choice O $128,572 $225,000 $375,000 O $525.000 Idaho Corp. has fixed costs of $20,000 and a contribution margin ratio of 50%. Currently, sales are $75,000. What is Idaho's margin of safety? Multiple Choice $28,000 $35,000 O $42.000 $70,000