21. at the end of 2020, the company determined that the total useful life should be 5 years. The journal entry to recognize the depreciation expense under straight- line method is: (3 Points) O debit depreciation expense 6944$, credit accumulated depreciation 69445 debit depreciation expense 61115, credit accumulated depreciation 61115 0 0 0 0 O debit depreciation expense 45835, credit accumulated depreciation 45839 2 %? debit depreciation expense 52089, credit accumulated depreciation 52085 18. Company "A" has a car. The cost of the car in 1/12/2018 is 30,000. Its estimated useful life is 6 years. The estimated salvage value is 2,500$. The productive life is 300,000 hours. Based on the information above, please solve question 18,19,20, and 21