Can you please help me finish solving these two problems

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2.

Sales of Volkswagen's popular Beetle have grown steadily at auto dealerships in Nevada during the past 5 years (see table below). Using exponential smoothing with a smoothing constant (a) of 0.30 and a starting forecast of 420.00, the following sales forecast has been developed: Year Sales Forecasted Sales 1 2 3 460 495 520 420.00 432.00 450.90 Using smoothing constants of 0.60 and 0.90, develop forecasts for the sales of WW Beetles. Use MAD to determine which of the three smoothing constants (0.30, 0.60, or 0.90) gives the most accurate forecast. The MAD for a forecast developed using exponential smoothing with a = 0.30 is 57.37 sales. (Round your response to two decimal places.) Calculate forecasted sales for years 2 and 3 using exponential smoothing with a = 0.60 and a starting forecast of 420.00 (round your responses to two decimal places). Year 1 2 3 Forecasted Sales 420.00 444 Daily high temperatures in St. Louis for the last week were as follows: 93, 94, 94, 92, 95, 90, 90 (yesterday). a) The high temperature for today using a 3-day moving average = 91.7 degrees (round your response to one decimal place). b) The high temperature for today using a 2-day moving average = 90 degrees (round your response to one decimal place). c) The mean absolute deviation based on a 2-day moving average = degrees (round your response to one decimal place)