Exercise 1 - Problem Solving (80 points) Presented below is the adjusted trial balance of Marina Ltd at December 31, 2019. Credit Copy Machinery 2020 Marina Ltd Adjusted Trial Balance December 31, 2019 Account Title Debit Cash 17,200 Supplies 2,800 Accounts Receivable 38,400 51,000 Accumul.Dep-Machinery Accounts Payable Salaries Payable Share Capital-ordinary Dividends 5,000 Retained Earnings Sales Revenue Salaries Expense 13,600 Depreciation Expense 2,800 Rent Expense 5,800 Total 136,600 12,800 24,800 4,700 50,000 2,400 41,900 136,600 Requirement: a) Prepare closing entries at December 31, 2019. (40 points) b) Prepare T-accounts for Retained Earnings and Income Summary (14 points) c) Prepare Post Closing Trial Balance at December 31, 2019 (26 points)