Huffington company uses a plantwide overhead rate to apply overhead. the predetermined overhead rate is based on machine hours. at the beginning of the year, the company made the following estimates: direct labor hours of 16,000, direct labor cost of $200,000, machine hours of 5,000, and total overhead costs of $25,000. on a per machine hour basis, the company’s plantwide overhead rate is: a. $8b. $50c. $5d. $100