Help please

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

How do you find the area of a triangle