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 23,000 $21,500 43,200 $21,200 50,500 15,700 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 $0.87. $0.83. $0.67. $0.65.