Chris Haltin began Haltin Office Services in October and during that month completed these transactions: a. Owner Invested $18,000 cash in the business. b. Completed office services for a customer and collected $2,000 cash. c. Purchased $1,200 of office supplies on credit. e. Received $950 cash from a customer for catering services to be provided next month Prepare journal entries to record the above transactions. Explanations are unnecessary.