There are a total of 105 students in a drama club and a yearbook club. the drama club has 17 more students than the yearbook club. how many students are in the drama club? the yearbook club?

With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17

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?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10