For this data set, the least squares regression line is Y = 31.72 + 0.62X, where X represents the final exam score as a percent,
and Y represents the predicted course grade as a percent. Using the given equation of the regression line, what is the predicted course grade of a student who earns 85% on the final exam?
The initial equation is 25x+150=650. Since she already has 150, we can subtract that from the total to get 500. We now have that 25x=500. Divide by 25 on both sides to get 20 weeks
