Ms. henning wants to purchase 30 calculators for her math class. calculators cost $14 each. ms. henning currently has $300 in her account to spend on the calculators. how much more money does she need ?
a. $100
b. $120
c. $240
d.$420

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

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 is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i