National Scan, Inc. sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: (see photo)
Forecast September sales volume using each of the following:
1. A weighted average using 0.45 for August, 0.20 for July, and 0.35 for June (round answer to 2 decimal places)
2. A linear trend equation. (Round your intermediate calculations and final answer to 2 decimal places.)
