Nadia is a stockbroker. she earns 14% commission each week. Last week, she sold 7200$ worth of stocks. How much did she make last week in commission? If she averages that same amount each week, how much did she make in commission in 2011?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

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.