3 questions thank you

The regression line for predicting the value of a variable y from the value of a variable x is y = 1.25 + 0.5x What is the predicted value of y when x = 68? Round your answer to 2 decimal places. Question 7 1 pts The regression line for predicting the value of a variable y from the value of a variable x is y = 3.15 + 2.5x Use this equation to find the residual for the point (x = 50, y = 130). Round your final answer and all calculations to 2 decimal places. Question 8 1 pts The regression line for predicting the value of a variable y from the value of a variable x is y = 3.15 + 2.5x Use this equation to find the residual for the point (x = 55, y = 138). Round your final answer and all calculations to 2 decimal places