Find the measures of each numbered angle ​

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

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?

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound