Exam 21 Chaps 13 and 1-5) 23 Gray Company uses a plantwide overhead rate with machine hours as the allocation base. Use the following information to solve for the amount of machine hours estimated per unit of product 10 points $ 13 $142,800 $ 238,000 MH 25 Direct material cost per unit of O Total estimated manufacturing overhead Total cost per unit of Total estimated machine hours Direct labor cost per unit of O 52 03:08:21