Refer to Exhibit 8-2. What is the forecast for March found by the exponential smoothing method with a smoothing constant of 0.3?

A.	41.5
B.	42.8
C.	39.5
D.	40

Refer to Exhibit 8-2. What is the absolute percentage error of the forecast for March found by the exponential smoothing method with a smoothing constant of 0.3?

A.	2.5%
B.	-19%
C.	17%
D.	18%

Exhibit 8-2.The past demand data shown below can be regarded as having a horizontal pattern.

Month	Demand
January	40
February	45
March	50
April	37

Need to know how to solve the 2 problems above. I think I got it right but want to verify my answers