Final answer:
The question related to the Tempe Manufacturing Company appears to be incomplete, as it lists financial figures without specifying what they represent. The company uses weighted average costing with a total cost per equivalent unit in March of $5.80, which includes both material and conversion costs.
Step-by-step explanation:
The Tempe Manufacturing Company makes a single product that is produced on a continuous basis in one department, where all materials are added at the beginning of production. Using the weighted average costing method, the total cost per equivalent unit in process in March was $5.80, consisting of $4.20 for materials and $1.60 for conversion costs.
During the month, 9,000 units of product were transferred to finished goods. On March 31st, there were 3,500 units in process at 10 percent conversion. The question seems to be incomplete as it lists possible financial figures (a) $1.60 b) $4.20 c) $5.80 d) $3.00) without specifying what these figures are supposed to represent. To provide an accurate answer, the question would need to clarify what these figures are meant to indicate (e.g., the cost of production, price per unit, etc.).