Im single and need a girlfriend does anybody want to date me pleae

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?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41