Murri Corporation has an activity-based costing system with three activity cost pools-Processing,Supervising, and Other.The company's overhead costs, which consist of factory utilities and indirect labor, are allocated to the cost pools in proportion to the activity cost pools' consumption of resources. Costs in the Processing cost pool are assigned to products based on machine-hours (MHs) and costs in the Setting Up cost pool are assigned to products based on the number of batches. Costs in the other cost pool are not assigned to products. Data concerning the two products and the company's costs and activity-based costing system appear below:

Factory Utilities(total): 31,800

Indirect Labor(total): 9,900

Distribution of Resource Consumption Across Activity Cost Pools: Processing Setting Up Other Processing Setting up Other Factory Utilities.................................. .3 .3 .4

Indirect Labor.................................. .4 .2 .4

MHs Batches Product X7........... 3,700 1,300

Product L4........... 8,000 900 TOTAL ........... 11,700 2,200

Product X7 Product L4 Sales (total)........... $70,300 $100,400

Direct Materials (total) $22,900 $40,100

Direct Labor (total) $27,200 $43,700

a) Assign overhead cost to activity cost pools using activity-based costing.

b) Calculate activity rates for each activity cost pool using activity-based costing.

c) Determine the amount of overhead cost that would be assigned to each product using activity-based costing.

d) Determine the product margins for each product using activity-based costing.