**Answer:**

The graph that does not represent a function is the 3rd one, with a circle.

**Step-by-step explanation:**

The 3rd graph is not a function because the x-values repeat, meaning there's more than one of the same value. You can also tell because by using the Vertical Line Test, that 2 points repeat.

**Answer:**

Unlike terms

**Step-by-step explanation:**

Im assuming that you mean -5x -5 disregarding the .0.5

If so then -5x -5 is unlike terms because -5x cant be combined with -5 because we dont know the value of the "x".

**Answer:**

**Step-by-step explanation:**

8775

/ \

3 2925

/ \

3 975

/ \

3 325

/ \

5 65

/ \

5 13

/ \

13 1

Prime Factors: 3, 3, 3, 5, 5, 13