For each of the following annuities, calculate the present value. (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)
Present Value Annuity Payment Years Interest Rate
| 2,300 | 7 | 9% | |
| 1,370 | 9 | 8 | |
| 12,330 | 15 | 10 | |
| 31,650 | 31 | 12 |
