Prepare journal entries to record these transactions. (List all debit entries before credit entries. Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts.) (a) Sheridan Company retires its defivery equipment, which cost $49,970. Accumulated depreciation is also $49,970 on this delivery equipment. No salvage value is received, (b) Assume the same information as in part (a), except that accumulated depreciation for the equipment is $36,820 instead of