PLEASE HELP ON PART C

The following table shows the actual demand observed over the last 11 years: This exercise contains only parts b, c, and d. b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one decimal place) . c) Using the 3-year weighted moving average with weights 0.10, 0.25, and 0.65, using 0.65 for the most recent period, provide the forecast from periods 4 through 12 (round your responses to two decimal places)