Please help with the Trend Projection. I am lost on were to start here. Please and Thank You

The monthly sales for Yazici Batteries, Inc., were as follows: This exercise contains only parts b and c. b) The forecast for the next month (Jan) using the naive method = sales (round your response to a whole number). \begin{tabular}{l|l} The forecast for the next period (Jan) using a 3-month moving average approach = sales (round your response to two decimal places). \end{tabular} Using exponential smoothing with =0.30 and a September forecast of 18.00 , the forecast for the next period (Jan) =20.63 sales (round your response to two decimal places). Using a method of trend projection, the forecast for the next month (Jan) = sales (round your response to two decimal places)