Which of the following best describes the slope of the line below? O A. Zero
O B. Negative
O C. Positive
D. Undefined

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What are the steps to solving the inequality 3b + 8 ≥ 14?

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?