Help ASAP I’ll give brainliest:)

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?

Given the median qr and trapezoid mnpo what is the value of x?

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6