I A scientist records the air temperature at eight different heights above sea level. The scatter plot shows the air temperature, y, y, in degrees Fahrenheit (°F),(°F), at each of these heights, x. x. 

What is the estimated air temperature according to the plot if the height above sea level in kilometers?
A.40
B. 48
C.55
D.70

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2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

What is the value of x? enter your answer in the box.

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?