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What is the value of this expression when b= 5 6 (2b-4)

Dilations map circles to circles and ellipses to ellipses with the same. true or false

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. !