If four dogs are picked up from the veterinarian and they are returned to their owners at random, what is the probability that at least one owner receives the wrong dog?

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

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 represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6