<span>C. No, because although the results differ among the four surveys, the sample method used for all was the same. Luc RANDOMLY selects 40 students in every survey. Random selection in surveys do not create bias and the results are highly credible. This is because there are no preconceived notions or factors that affect the responses of people being surveyed.</span>
I believe the value of y is -28
also believe m
25 is 57.4
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To do this in my head: 60km = 40km+20km
So 40km/8km = 5
40 k is approximately 5x5miles = 25 miles
20k is half that or 12.5 miles
60 is about 25+12.5 miles
or 37.5 miles