help and thank you!

Cynthia's Design Studios had sales the last four months of $13,700,$15,400,$17,350, and $18,400, Sales are related to how many designers Cynthia has on-duty The sales forecast helps her decide on the proper staffing levels. Round your answers to the nearest whole number. a. What is the forecast for the fifth month using a two-period moving average? 4 b. What is the forecast for the fifth month using a=0.9 in an exponential smoothing model with A4=18,400 and F4=516,983 to get things started. 5