Tyler’s math class found that it would take 2.5×108 dollar bills to cover a square mile area. The surface area of the United States is about 3.8×106 square miles. About how many dollar bills are needed to cover the United States? 6.3×10^14

9.5×10^14

6.3×10^48

9.5×10^48

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.