David lives in the country of Snowland. He has:

a part-time job with one employer earning a gross salary of $22,000 per year; a casual job with a different employer earning a gross salary of $7,000 per year; $17,000 in a 1 year term deposit that will earn interest at the rate of 5% per year; and work-related expenses of $2,000 per year that are an allowable deduction. What is his assessable income (to the nearest dollar)?