Need help with this problem very confused

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.

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?