From the interest tables in Appendix A, determine the values of the following factors by interpolation and

Question:

From the interest tables in Appendix A, determine the values of the following factors by interpolation and compare your results with those obtained from evaluating the A/P and P/A interest formulas.
(a) The capital-recovery factor for 38 periods at 6.25% interest.
(b) The equal-payment series present-worth factor for 85 periods at 9.25% interest.