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The following is a partial standard cost card for the Davidson Company, based on a forecast of 15,000 units per month, and 30,000 DLHs per month. Item: Std. Price: Std. Quantity: Std. Cost: $ 2.00/unit D. Materials D. Labor VOH 15.00/unit FOH 2.50/unit 1.00/unit Actual Costs: Actual production data for July Items: D. Materials D. Labor Actual Quantities 2 25,200 DLHs ? VOH $35,000 S15,200 FOH Output 15,500 units Required: a. Complete the manufacturing cost equation. b. Calculate all VOH variances C. Calculate all FOH variances. d. Prepare the journal entries to record VOH and FOH