Between which two values would 50% of the data lie? Select all that apply. HURRY 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. !

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

What is the difference between the predicted value and the actual value