Solve clearly

4.30 A $100,000 investment is made over a 10-year period. A return of $23,000 occurs at the end of the rst year. Each successive year yields a return that is $2,000 less than the previous year's return. If money is worth 8%, what is the equivalent present worth for the investment? What is the equivalent annual worth for the investment? What is the equivalent future worth for the investment? (Solve manually and then solve by using Excel or another spreadsheet software program.)