Sargent Corporation bought equipment on January 1, 2020. The equipment cost 540,000 and had an expected residual value of 90,000. The life of the equipment was estimated to be 6 years. The book value of the equipment at the beginning of the third year (after 2 years of depreciation) would be: Hint: You first need to know: What is the accumulated depreciation after 2 years? 390,000450,000540,000.150,000