Simone raced 280 km from Perry to Medford and then idled back. If the round trip took 7 hours, what was Simone's average speed in km/hr?

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. !

This is so hard and it’s for a test

Give me the equations of two lines that have the same slope but are not parallel.