Use the law of cosines to find each missing side round to the nearest tenth

Use set buikder notation to represent the following set: {, -2, -1, 0}

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?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4