P9 & P10 cover chapters 5 of the textbook, which discusses time value of money concepts. Specifically: - P9 covers single amounts, annuities, and the role of time value in finance. It provides examples of calculating future value, present value, and net present value. - P10 extends the discussion to mixed cash flow streams, compounding interest more frequently than annually, and special applications of time value. It also provides additional examples of time value calculations. - The key concepts covered are future value, present value, net present value, internal rate of return, and modified internal rate of return. Worked examples are provided to illustrate calculations for each.