please answer the full thing only got a few questions left

Short Answer 1. Sam Bowden believes an actual manufacturing overhead should be charged to jobs. Do you agree? Why or why not? 2. How is a pre-determined overhead rate calculated? 3. Matt Litkee is confused about under- and over-applied manufacturing overhead. Define the terms for Matt, and indicate the balance in the factory overhead account applicable to each term. "At the end of the year, under-or over-applied overhead is closed to Income Summary." Is this correct? If not, indicate the customary treatment of this amount