Based on this multiple regression model Mpg = 36.3751 - 3.5123* wt - 0.0360 *hp

1. What is the predicted value of miles per gallon for a car that has 2.78 (2,780 lbs) weight and 225 horsepower? Suppose that this car achieves 18 miles per gallon, what is the residual based on this actual value and the value that is predicted using the regression equation?
2. How do the plots and correlation coefficients of your peers compare with yours?
3. mine is mpg = 37.2757 - 5.3542*wt - 0.780766