Sarah estimated that 230 people will attend the concert but 300 people attended. what was the percent change? round to the nearest tenth.

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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?

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form