a. Replaced an engine in a truck for $66,000 cash that extended its useful by four years. b. Paid $330 cash for annual oil servicing of equipment. c. Paid $264 for the monthly cost of replacement air filters. d. Added an extension to the company's building for $371,250 cash. Enter answers in the tabs below. Classify each transaction as either a revenue expenditure or a capital expenditure. Prepare the journal entries to record the four transactions from part 1. Journal entry worksheet Replaced an engine in a truck for $66,000 cash that extended its useful by four years. Note: Enter debits before credits