.a. Using the Hi-Lo method, calculate variable cost per mile, fixed costs,and a prediction of delivery expense when they travel 12,000 miles in a month.

Using the Least Squares/Regression method, calculate variable cost per mile, fixed costs, and a prediction of delivery expense when they travel 12,000 miles in a month.

Display a chart of delivery expense and miles driven with a trend line.(Be sure to modify each axis so your scatter diagram is better dis-played, as you did earlier in this chapter.)