Ripley, Inc., costs products using a normal costing system. The following data are available for last year: Budgeted: Overhead is applied on the basis of direct labor hours. Required: 1. What was the predetermined overhead rate? $ per direct labor hour 2. What was the applied overhead for last year? 3. Was overhead over- or underapplied, and by how much? =$ 4. What was the total cost per unit produced? (Carry your answer to four significant digits.) $ per unit