If you formed an algebraic equation to model the sentence, three times a number is equal to nine, how many variables would be in the equation?
a. 1
b. 2
c. 3
d. 5

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

If a || b and e || f , what if the value of y ?