i don't understand how to do this please help me.

Sweeten Company had no jobs in progress at the beginning of the year and no beginning inventories. It started, completed, and sold only two jobs during the year-Job P and Job Q. The company uses a plantwide predetermined overhead rate based on machine-hours. At the beginning of the year, it estimated that 4,000 machine-hours would be required for the period's estimated level of production. Sweeten also estimated $25,800 of fixed manufacturing overhead cost for the coming period and variable manufacturing overhead of $1.90 per machine hour. Because Sweeten has two manufauring departments-Molding and Fabrication-it is considering replacing its plantwide overhead rate with departmental rates that would also be based on machine-hours. The company gathered the following additional information to enable calculoting departmental overhead rates: The direct materials cost, direct labor cost, and machine-hours used for Jobs P and Q are as follows: Sweeten Company had no overapplied or underapplied manufacturing overhead costs during the year: Required: For questions 18, assume thot Sweeten Company uses a plantwide predetermined overhead rate with machine-hours as the allocation base. For questions, 9-15, assume that the company uses predetermined departmental overhead rates with machine-hours as the allocation base in both departments. 4. if Job P includes 20 units, what is its unit product cost