An incomplete subsidiary ledger of materials inventory for May is as follows: Received Issued Balance Receiving Materials Report Unit Requisition Unit Number Quantity Price Number Quantity Amount Date Quantity Price Amount May 1 289 $30.30 $8,757 40 136 $32.30 May 4 91 369 May 10 44 116 38.50 May 21 97 104 May 27 Required: a. Complete the materials issuances and balances for the materials subsidiary ledger under FIFO. Round your unit price answers to two decimal places and final answers to the nearest dollar. b. Determine the materials inventory balance at the end of May. Round your answer to the nearest dollar. c. Journalize the summary entry on May 31 to transfer materials to work in process. Refer to the Chart of Accounts for exact wording of account titles. Round your answers to the nearest dollar. d. Explain how the materials ledger might be used as an aid in maintaining inventory quantities on hand.