[PLEASE HELP]
Catalina incorrectly solved a rational equation. Her work is shown. What error did she make?

She did not use the least common multiple of the denominator.

She did not use the distributive property correctly.

She did not use one or more properties of exponents correctly.

She did not combine like terms correctly.

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?

If 3x+8=3x+8 is it one solution or no solution

Aline passes through 3,7 and 6,9 what equation represents the line