Answer:
3rd number line
Step-by-step explanation:
The correct answer is the third one.
Each x value (or domain) can only have one unique output. For example, if I had (2,7), then I could not have (2,14). If I had (3,15), then I could have (3,15) again, because they are the same point. If you need further explanation, just let me know. : )
Answer: 59.58 ft
Step-by-step explanation:
Given
The area of the neighbor's fence is 
Suppose the length of the fence is L and the shape of the fenced area is square
So, we can write

According to the question, Cody's fence length must be twice of neighbor's
The length of Cody's fence is
Use the distance of 1 lap to multiply the number of laps ran