Problem 4 9 points Hubbard Company purchased a truck on January 1, 20X6, at a cost of $34,000. The company estimated that the truck would have a useful life of 4 years and a residual value of $4,000. Requirements: A. Calculate depreciation expense under straight-line and double declining balance for 20X6- 20X9 B. Which of the two methods would result in lower net income in 20X7 and 20X9