Equipment with a cost of $640,000 has an estimated salvage value of $40,000 and an estimated life of 4 years or 15,000 hours. It is to be depreciated using the units- of-activity method. What is the amount of depreciation for the first full year, during which the equipment was used for 3,300 hours? $132.000. $180.800. $160,000 $150,000 Question 15 (1 point)