I needed help with question #29. Thank you. Sorry the picture is a bit blurry.

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?

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!