If all the angles are 60 degrees, this is an equilateral triangle. This means that all the sides have the same lengths. Whatever length side a is, b and c have the same length.
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As x increases, y increases. So this data has a positive association. The association looks to be strong, as the values all follow the trend pretty closely.
Answer=Strong Positive
247 is equal to 200+40+7.
358 is equal to 300+50+8.
To find the answer, add 200+300=500.
40+50=90
7+8=15
500+90+15=605
The answer is 605.
I think the answer is 6 from the information you provided.