Donald Enterprises produces a product with the following per-unit costs: Direct materials $15.00 Direct labor 10.00 Manufacturing overhead 20.00 Last year, Donald Enterprises produced and sold 1,000 units at a sales price of $50 each. The total selling and administrative expense was $24,200. What was the per-unit prime cost? (Note: Round your answer to two decimal places.) a. $25.00

b. $30.00

c. 45.00

d. $15.00

Show the steps on how you got the answer.