Marine, inc., manufactures a product that is available in both a flexible and a rigid model. the company has made the rigid model for years; the flexible model was introduced several years ago to tap a new segment of the market. since introduction of the flexible model, the company's profits have steadily declined, and management has become concerned about the accuracy of its costing system. sales of the flexible model have been increasing rapidly. overhead is applied to products on the basis of direct labor-hours. at the beginning of the current year, management estimated that $567,000 in overhead costs would be incurred and the company would produce and sell 5,000 units of the flexible model and 40,000 units of the rigid model. the flexible model requires 1.6 hours of direct labor time per unit, and the rigid model requires 0.8 hours. direct materials and labor costs per unit are given below: flexible rigid direct materials cost per unit $ 150 $ 112 direct labor cost per unit $ 16 $ 8 required: 1-a. compute the predetermined overhead rate using direct labor-hours as the basis for allocating overhead costs to products. (round your answer to 2 decimal places.) predetermined overhead rate $ per dlh1-b. compute the unit product cost for one unit of each model. (do not round intermediate calculations. round your final answers to 2 decimal places.)unit product cost flexible $ rigid $ 2. an intern suggested that the company use activity-based costing to cost its products. a team was formed to investigate this idea. it came back with the recommendation that four activity cost pools be used. these cost pools and their associated activities are listed as follows: estimated overhead cost expected activity activity cost pool and activity measure flexible rigid total purchase orders (number of orders) $ 22,000 400 800 1,200 rework requests (number of requests) 10,000 300 600 900 product testing (number of tests) 207,000 4,000 11,000 15,000 machine-related (machine hours) 328,000 20,000 30,000 50,000 $ 567,000 compute the activity rate for each of the activity cost pools. (round your answers to 2 decimal places.) activity cost pool activity rate purchase orders $ per order rework requests $ per request product testing $ per test machine-related $ per mh3. using activity-based costing, do the following: a. determine the total amount of overhead that would be assigned to each model for the year. (do not round intermediate calculations. round your answers to 2 decimal places.)total amount of overhead flexible $ rigid $ b. compute the unit product cost for one unit of each model. (do not round intermediate calculations. round your answers to 2 decimal places.) unit product cost flexible $ rigid $