Please help with req C1&C2

Required: a. If there have not been any purchases, sales, or other transactions affecting this equipment account since the equipment was first acquired, what is the amount of the depreciation expense for 2020 ? b. Assume the same facts as in part a, and assume that the estimated useful life of the equipment to HiROE Inc., is eight years and that there is no estimated salvage value. Determine: 1. What the original cost of the equipment was. 2. What depreciation method is apparently being used. 3. When the equipment was acquired. c. Assume that this equipment account represents the cost of 10 identical machines. Prepare the horizontal model and record the journal entry for the sale of the machine to calculate the gain or loss on the sale of one of the machines on January 2,2021, for $3,950. Indicate the financial statement effect. Assume that this equipment account represents the cost of 10 identical machines. Prepare the journal entry for the sale of the machine to calculate the gain or loss sale of one of the machines on January 2, 2021, for $3,950. (If no entry is required for a transaction/event, select "No joumal entry required" in the first account field.) Journal entry worksheet Note: Enter debits befare credts