Marcel must temporarily invest some extra funds in his retail business every fall to purchase inventory in preparation for the Christmas season. On September 1 he already had a total of $57,000 invested in his business. On October 1 he invested another $15,000, and on November 1 he injected $27,000. He was able to withdraw $23,000 on February 1, $13,000 on March 1, and $6,000 on May 1. What was the average cumulative investment in the business during the period from September 1 to August 31? (Assume that each month has the same length.)

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The Answer of Marcel must temporarily invest some extra funds in his retail business every fall to purchase inventory in preparation for the Christmas season. On September 1 he already had a total of $57,000 invested in his business. On October 1 he invested another $15,000, and on November 1 he injected $27,000. He was able to withdraw $23,000 on February 1, $13,000 on March 1, and $6,000 on May 1. What was the average cumulative investment in the business during the period from September 1 to August 31? (Assume that each month has the same length.)

Marcel Must Temporarily Invest Some Extra Funds in His Retail