During the month of May, Russnak Corporation, a manufacturing company, purchased raw materials costing $73,000. The cost of goods manufactured for the month was $102,000. The beginning balance in the raw materials account was $26,000 and the ending balance was $39,000. The beginning balance in the finished goods account was $42,000 and the ending balance was $46,000.

Required:
a. What was the cost of raw materials used in production during May? Show your work.
b. What was the cost of goods sold for May? Show your work.