What is the weighted average cost per unit for July on these general accounting question?

Arden Manufacturing uses process costing. At the beginning of March, there were 1,200 units in beginning inventory, 45% complete. During the month, 9,500 units were started. At the end of March, 600 units remained in ending inventory, 80% complete. How many units were completed during the month of March?

A warehouse with an appraisal value of $145,320 is made available at an offer price of $168,750. The purchaser acquires the property for $40,500 in cash, a 90-day note payable for $26,500, and a mortgage amounting to $62,900. What is the cost basis recorded in the buyer's accounting records to recognize this purchase? a) $168,750 b) $145,320 c) $129,900 d) $121,460