Mrs. Irons places the names of each of her four children in a hat at one time. She randomly draws a name, places it back in the hat,
and draws again. The results are shown in the table below,

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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?

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution