What you do is plug the z value (first column) into the formula (second column), and solve for y. For instance, the first one would be y = -1-2, or -3. The x would be the x in the ordered pair, and the final ordered pair would be (-1,-3). Make sense?
What you would have to do is take the 18 and double it because 50% doubled is 100% so when you double 18 it is 36
If this paper dosent help u solve it on Your own i can walk u through it
Answer:
Dependent variable is the amount of hours of sleep.
Independent variables are gender, amount of time spent studying, and hours of activity.