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a. A Machine was bought for Sh. 500,000 and it was estimated to be in operation for 4 years with a residue value of Sh. 100,000. Calculate the depreciation expense for each year 3 marks b. Calculate the reducing balance depreciation charged at 10% for the first 4 years on a machine bought for Sh. 400,000.3 marks c Control accounts include sales ledger control account and purchases ledger account. 1. State any two transactions that increase the sales ledger control account (4 marks) ii. State any two transactions that decrease the purchases ledger control account(4 marks)