2x + 4 ≤ 10 Solve the inequality by showing work

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?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

X2 + y 2 = 36 x + y = 6 solve the system of equations.