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3. The following equation summarizes the trend portion of quarterly sales of condominiums over a long cycle. Sales also exhibit seasonal variations. Using the information given, prepare a forecast of sales for each quarter of next year (not this year), and the first quarter of the year following that. F3: 40 6.5t + 2t"2 where Ft=Unit Sales t=0 at, the first quarter of last year Qua rterRelative 1 1.1 2 1.0 3 .7 4 1.2