Cullumber Company owns delivery equipment that cost $49,700 and has accumulated depreciation of $24,800 as of July 30, 2020. On that date, Cullumber disposes of this equipment. For parts b-d below, enter D for debit or C for credit in the first box and the amount in the second box. a. What is the net book value of the equipment on July 30, 2020? b. Assume Cullumber scraps the equipment as having no value on July 30. What is the gain or loss, if any, that Cullumber should recognize? c. Assume Cullumber sells the equipment for $37,200 cash on July 30. What is the gain or loss, if any, that Cullumber should recognize? d. Assume Cullumber sells the equipment for $18,000 cash on July 30. What is the gain or loss, if any, that Cullumber should recognize