Solve this rn and ill give you discord nitro for 1yr

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

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish