The following graph represents the solution to which system? 1. y= - 7x+3
y = 3x-2

2. y= 3x-7
y= -2x+3

3. y= 2x+3
y= 3x-7

4. y= 2x +3
y= - 3x-7

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. !

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

20 ! brainliest ! add and simplify your answer.