This document discusses chapter 5 of an introductory mathematical analysis textbook. The chapter covers various topics related to mathematics of finance, including compound interest, present value, interest compounded continuously, annuities, and amortization of loans. It provides examples and solutions for various types of problems involving these topics, such as calculating compound interest, present value, effective interest rates, sums of geometric series, present value of annuities, and amortizing loans. The chapter objectives are to solve problems requiring logarithms, involving time value of money, with continuously compounded interest, and to introduce ordinary annuities, annuities due, and amortization of loans.