Me is all of da bored so yee hi free points yw

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?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

What is the absolute value of -100000000000000?