The following information pertains to Oklahoma Co.'s Tulsa Division for the month of April: Beginning Work-in-Process Started in April Units completed Ending Work-in-Process Units Materials 21,500 $18,500 42,600 $20,600 49,000 15,100 All materials are added at the beginning of the process. Using the weighted average method, the cost per equivalent unit of materials is: (CPA adapted) (Round your answer to 2 decimal places.) Multiple Choice 0 $0.63 0 $0.82. $0.78. $0.61