Hello, can you help me out with this question? please explain your answer/calculations. Thank you.

Confiable Muffler specializes in replacing mufflers. In April, purchases of materials equaled $200,000, the beginning inventory of material was $26,300, and the ending inventory of material was $14,250. Payments to direct labor during the month totaled $53,000. Overhead incurred was $120,000. Confiable Muffler also spent $15,000 on advertising and $3,000 on the administration during the month. Revenues for the month were $500,000.

1. What was the prime cost for April?
2. What was the total service cost for April?
3. What was the income for April?