Help please, will mark brainiest Click to choose the correct graph to match the given expression.

G(x)= x^2-16/x+4

(each unit is equal to 2.)

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?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)