Unit 2B - Exponential and Logarithmic Functions
        2.9 Logarithmic Expressions
        2.10 Inverses of Exponential Functions
        2.11 Logarithmic Functions
        2.12 Logarithmic Function Manipulation
        2.13A Exponential and Logarithmic Equations and Inequalities
        2.13B Exponential and Logarithmic Equations and Inequalities
        2.14 Logarithmic Function Context and Data Modeling
        2.15 Semi-log Plots
        Unit 2B REVIEW