1. The problem asks to select the option that does not require the use of mathematical models. 2. Let's analyze each option: - a. Analyzing real life situations often involves understanding data and relationships, which can require mathematical models. - b. Representing real life situations usually means creating models or diagrams, often mathematical, to describe the situation. - c. Predicting the relief of real life situations involves forecasting outcomes, which typically uses mathematical models. - d. Bringing solutions to real life situations can involve practical or qualitative approaches that may not necessarily require mathematical models. 3. Therefore, the option that does not need to use mathematical models is d. bring solutions to real life situations. Final answer: d