i need help with all 5 questions please

PROBLEM #2 After reading an article about activity-based costing in a trade journal for the furniture industry, Santana Rey wondered if it was time to critically analyze overhead costs at Business Solutions, Inc. In a recent period, Santana found that setup costs, inspection costs, and utility costs made up most of its overhead. Additional information about overhead follows: Activity Setting up machines Inspecting components Providing utilities Cost $20,000 $7,500 $10,000 Driver 25 batches 5,000 parts 5,000 machine hours Overhead has been applied to output at a rate of 50% of direct labor costs. The following data pertain to Job 615: Direct materials Direct labor Selling price Batches Number of parts Machine hours $2,500 $3,500 $9,000 2 batches 400 parts 600 machine hours 1. What is the total cost of Job 615 if Business Solutions Inc. applies overhead using the plantwide rate of 50% of direct labor cost? 2 2. What is the total cost of Job 615 if Business Solutions Inc. applies overhead using activity based costing? 3. Determine gross profit per unit and gross profit percentage using the plantwide rate of assigning overhead. 4. Determine gross profit per unit and gross profit percentage using activity based costing method of assigning overhead. 5. Which approach to assigning overhead gives a better representation of the costs incurred to produce Job 615? Explain