Can B and C be solved step by step please. Thank you •• 7.117.11 Nagle Electric, Inc., of Lincoln, Nebraska, must replacea robotic MIG welder and is evaluating two alternatives. MachineA has a fixed cost for the first year of $75,000 and a variable cost of$16, with a capacity of 18,000 units per year. Machine B is slower,with a speed of one-half of A's, but the fixed cost is only $60,000. Thevariable cost will be higher, at $20 per unit. Each unit is expected tosell for $28.a) What is the crossover point (point of indifference) in units forthe two machines?b) What is the range of units for which machine A is preferable?c) What is the range of units for which machine B is preferable?

There are two machines. Machine A and machine B Machine A: Fixed cost = $75000 Variable cost per unit = $16 Capacity = 18,000 units per year Machine B: Fixed cost = $60,000 Variable cost per unit = $20 Selling price per unit of product = $28In order to calculate the range of machine A and machine B, we first identify the cost function. Total cost = Fixed cost + (Number of units × Variable cost per unit) and Revenue = Number of units ×Selling price per unit Machine A: Total cost = 75000+16Q Machine B: Total cost = 60,000+20Q and Revenue = 28Q Cross over point: 75000+16Q=60000+20Q So, 20Q-16Q=75000-60000 Hence, 4Q=15000 So, Q=150004 Q = 3750 units Now, for different quantities, we will find revenue and cost. For that, insert the data in Excel as shown in the below image. For the data, use the following formula, Insert the scatter plot chart. From the above chart, we can see that for quantity more than 3750, machine B has a higher cost than machine B. So the range for machine A will be 3750 to 18000 units (as 18000 is the capacity) per year. From the chart in step 2, it can be observed that for the quantity below 3750 units, machine B is preferred. Range of machine B = 0 to 3750 units