PLZ HELP!

What is the rule for the function that is graphed?

y = 2 x + 2

y = 3 x + 2

y = 2 x

y = x – 2

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a