Can you please provide assistance and include the details of how you arrived at your answer? I would really appreciate the help!

Accounts receivable management An evaluation of the books of Blair Supply, which follows, gives the end-of-year accounts receivable balance, which is believed to con- sist of amounts originating in the months indicated. The company had annual sales of $2.4 million. The firm extends 30-day credit terms. Month of origin July August September October November December Accounts receivable S 3,875 2,000 34,025 15,100 52,000 193,000 Year-end accounts receivable $300,000 a. Use the year-end total to evaluate the firm's collection system. b. If 70% of the firm's sales occur between July and December, would this informa- tion affect the validity of your conclusion in part a? Explain