Part A: Write the inputs as an ordered pair so that it is a function. Part B: Write the inputs as an ordered pair so that it is NOT a function.

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?

How do i do this activity, is appreciated

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"