Inequalities are really important in making decisions and looking at data, especially when we talk about linear equations.

1. Understanding Limits: Inequalities show us limits in different situations, like budgets, resource use, and production caps. For example, if a company has $10,000 to spend, we can write this as the inequality$x ≤ 10,000$, where$x$ means how much they spend.

2. How We Use Data: In data analysis, inequalities help us define limits. For example, we can use inequalities to set up passing grades for students. A rule like $x ≥ 75$ may show that students need at least 75 points to pass.

3. Making Smart Choices: In economics, inequalities help companies make the best choices. They use something called linear programming to get the most profit or to spend the least amount. They look at limits, like in the inequality $3x + 2y ≤ 1000$, to create realistic plans for how much to produce.

In short, inequalities are useful tools that help people make important decisions in many areas, from economics to environmental science.