Could you help me solve this financial accounting question using appropriate calculation techniques?

Hemsworth Electronics company has a beginning finished goods inventory of $24,500, raw material purchases of $35,600, cost of goods manufactured of $42,800, and an ending finished goods inventory of $27,300. The cost of goods sold for this company is?need help

Please provide the answer to this financial accounting question with proper steps.

Thompson, Inc. had accounts receivable of $580,000 and an allowance for doubtful accounts of $23,400 just before writing off as worthless an account receivable from Sullivan Company of $2,750. The net realizable value of the accounts receivable before and after the write-off was: A. $556,600 before and $556,600 after. B. $603,400 before and $600,650 after. C. $556,600 before and $553,850 after. D. $580,000 before and $577,250 after.

I am looking for help with this general accounting question using proper accounting standards.

Frontier Manufacturing recently purchased 182,000 units of raw material for $710,000. Four units of raw materials are budgeted for use in each finished good manufactured, with the raw material standard set at $34.00 for each completed product. Frontier manufactured 38,750 finished units during the period just ended and used 169,425 units of raw material. If management is concerned about the timely reporting of variances in an effort to improve cost control and bottom-line performance, what would the materials purchase price variance be? HELP

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Please provide the correct answer to this general accounting problem using accurate calculations.

Under variable costing, each unit of the company's inventory would be carried at: