The scatter plot for a set of data points is shown. choose the best estimate for r, the correlation coefficient

a) 0.2
b)0.5
c)0.7
d)0.9

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes. she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?