If these four countries trade only within this group, what is the difference between the highest balance of trade and the lowest
balance of trade?
a $6,221,000,000
b. $5,003,000,000
C. $3,772,000,000
d. $2,123,000,000

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.

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p. s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)