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 Q. Direct material cost per unit of Total estimated manufacturing overhead Total cost per unit of Total estimated machine hours Direct labor cost per unit of O $ 18 $103,000 $ 72 206,000 MH 36 $ Multiple Choice 36 MH per unit of Q. 0.75 MH per unit of Q. 0.50 MH per unit of 21.00 MH per unit of Multiple Choice 36 MH per unit of Q. 0.75 MH per unit of Q. 0.50 MH per unit of Q. 21.00 MH per unit of Q. 60 MH per unit of