Bell Company has provided the following data for maintenance costs: Machine Hours Incurred Maintenance Cost Incurred Aprill 12,000 $24,000 Mayl 16,000 $26,000 Using the high-low method, what is the cost formula for maintenance cost? Multiple Choice O $200 per machine hour. $24,000 plus $0.50 per machine hour. $18,000 plus $0.50 per machine hour. $1.625 per machine hour. The controller of Joy Co has requested a quick estimate of the manufacturing supplies needed for July when production is expected to be 470,000 units. Below are actual data from the prior three months of operations: March April May Production in units Manufacturing supplies 450,000 $723,0601 540,000 853,5601 480.000 766,560 Using these data and the high-low method, what is the best estimate of the cost of manufacturing supplies that would be needed for July? (Assume that this activity is within the relevant range.) Multiple Choice $1,188,756. $805,284. $755,196. O $752,060. Which of the following is defined as the difference between total sales in dollars and total variable expenses? Multiple Choice O Margin of safety The gross margin. o Operating income. The contribution margin