Simplify the product 5/n+1 times n+1/n+3

Answer is 5/n+3 = simple

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.

What’s the answer ? use the picture to see the problem

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?