Answer:
a) 0
b)2
Step-by-step explanation:
a) Basically, the question is asking what the x value is when the y value is at 4, which would be 0.
b) Same thing here, but with the x value is when the y value is -2.
The equation is simply 8s where s is the length of a side. There are 8 sides. You are just adding the length of all 8 sides together to get the perimeter.
Answer:

Step-by-step explanation:

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<em> hope it helps..</em>
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Answer:
2/5
Step-by-step explanation:
2/5=4/10