Mom signs up for a new cell phone plan for $110. The Plan includes 4GB data time each month without additional charge. If more data is needed, it will cost $10 for each additional
GB of data time.
1. Write an equation for "C" (total monthy cost of the plan) including the additional cost
of any GB used beyond 4 GB.
C =
+/- (pick one)
X

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

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.

Me. i can't figure out this question. give an explanation too. .