What is this year's forecast using trend adjusted (double) smoothing with alpha = 0.2 and beta = 0.1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

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The Answer of What is this year's forecast using trend adjusted (double) smoothing with alpha = 0.2 and beta = 0.1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

What Is This Year's Forecast Using Trend Adjusted (Double) Smoothing