Can you help me answer these 3 questions based on the graph. Thank you

1. What would the r² value tell you about the data that you selected?
2. What is the equation of the regression line?
3. Use the regression line to make a prediction about the data you collected.

Number of students 800 700 600 500 400 300 200 100 Number of Credit Hours Completed per Students 10 13 16 19 22 Credit hours completed 25