Someone please help me:A figure has an area of 125 units2. What will the new perimeter be after a dilation with a scale factor of 1/5

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. !

Find the solution of system of equation y= x-4 y=4x+2

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).