Sara€™s Ice Cream Shop is closed for six months out of the year, but has had the monthly sales amounts listed as follows for the last four years. Assuming that there is both seasonality and a trend, estimate monthly sales for each month of the comingyear.

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Year: May June July August September 1.178,795 October368,475 2010 S436,880 743,947 1,449,280 1,428,123 2011 $926,046 1,084,321 1,249,470 1,794,586 1,022,538 465,971 2012 S534,007 597,606 1,564,939 1,579,376 1,849,585 1590,067 683,038 483,142 2013 $851,622 741,444 724,279 651,824