(Engineering Economy 8th Edition #3.11) Determine the equivalent annual worth for years 1 through 10 of a uniform series of payments of $20,000 that begins in year 3 and ends in year 10. Use an interest rate of 10% per year. Also, write a single-cell spreadsheet function to find A.

Please clearly show how to use a flowchart and formulas for this problem. Thank you!