(a) Office supplies on hand at year-end amounted to $100 (b) On January 1,20-, Williams purchased office equipment that cost $18,000. It has an expected useful life of 10 years and no salvage value. (c) On July 1,20-, Williams purchased computer equipment costing $6,000. It has an expected useful life of three years and no salvage value Assume that Williams computes depreciation to the nearest full month. (d) On December 1, 20-, Williams paid a premium of $600 for a six-month insurance policy Required: 1. Prepare the work sheet for the year ended December 31,20. 2. Prepare adjusting entries in a general journal. (a) Office supplies on hand at year-end amounted to $100 (b) On January 1,20-, Williams purchased office equipment that cost $18,000. It has an expected useful life of 10 years and no salvage value. (c) On July 1,20-, Williams purchased computer equipment costing $6,000. It has an expected useful life of three years and no salvage value Assume that Williams computes depreciation to the nearest full month. (d) On December 1, 20-, Williams paid a premium of $600 for a six-month insurance policy Required: 1. Prepare the work sheet for the year ended December 31,20. 2. Prepare adjusting entries in a general journal