At a grocery, rick bought 3 bottles of water and 5 heart-healthy frozen meals for $24. danny bought 4 bottles of water and 4 heart-healthy frozen meals for $22. identify the cost of a bottle of water and the cost of a heart-healthy frozen meal.​

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.

Ineed to know the answer to this algebra question.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]