Solve:

1-9
3

= 2
What is the answer to this

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?

What is the ratio fraction form of 25: 9

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship