Final answer:
Constraints within a problem are represented as inequalities, which involve inequality symbols to denote the relationship between quantities in conditions that are not strict equalities.
Step-by-step explanation:
Constraints or conditions within a problem situation are represented in an inequality as d) As inequalities. Inequalities are mathematical expressions that define the relationship between two quantities using inequality symbols like <, >, ≤ (less than or equal to), and ≥ (greater than or equal to). For example, you can use an inequality symbol to show how two metric measurements are related. In the case of a quadratic equation, such as where the constants are a = 1.00, b = 10.0, and c = -200, you cannot directly write it as an inequality until you are considering the range for which the quadratic expression is either greater than or less than some value.