This math topic focuses on solving natural logarithm equations where the arguments are decimal numbers. Specifically, it asks students to solve equations of the form \(\log_e (value) = x\), where the value is a decimal, and determine the value of \(x\). The topic provides multiple-answer choices for each problem, allowing students to practice converting between decimal expressions and their corresponding natural logarithm values. This is part of an introductory unit on logarithms, emphasizing basic logarithmic computations involving the natural logarithm (base \(e\)).