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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Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.