PLEASE THIS IS IRGENT I MEED TO FIND X AND Y PLEASE SOMEONE HELP ME ITS DUE IN LESS THAN AN HOUR IM STRESSING

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?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily