A researcher studies the relationship between Daily number of minutes on social media and Daily hours of sleep for 356 university students and finds a linear relationship. They create the following regression equation and find an r2 value of 0.455:

Predicted hours of sleep = 10.15 - 0.02*(Minutes on social media)

What is the predicted hours of sleep for a student who spends 60 minutes on social media? Answer to two decimal places as needed.