Required information Problem 6-24 Determining the effect of depreciation expense on financial statements LO 6-2, 6-3, 6-4 [The following information applies to the questions displayed below.). Three different companies each purchased trucks on January 1, 2018, for $84,000. Each truck was expected to last four years or 250,000 miles. Salvage value was estimated to be $5,000. All three trucks were driven 77,000 miles in 2018, 57,000 miles in 2019, 52,000 miles in 2020, and 72,000 miles in 2021. Each of the three companies earned $73,000 of cash revenue during each of the four years. Company A uses straight-line depreciation, company B uses double-declining balance depreciation, and company C uses units-of-production depreciation. Answer each of the following questions. Ignore the effects of income taxes. Problem 6-24 Part a Required a-1. Calculate the net income for 2018? (Round "Per Unit Cost" to 3 decimal places.) Net Income Company A Company B Company C a-2. Which company will report the highest amount of net income for 2018? O Company A O Company B O Company C O All of the choices Problem 6-24 Part b b-1. Calculate the net income for 2021? (Round "Per Unit Cost" to 3 decimal places.) Net Income Company A Company B Company c b-2. Which company will report the lowest amount of net income for 2021? O Company A O Company B O Company C O All of the choices