Full question included. Is my answer for question 1 with the regression analyses correct?

(LO 5-5, 6) 5-63. Interpretation of Regression Results: Simple Regression

Your company provides a variety of delivery services. Management wants to know the volume of a particular delivery that would generate $10,000 per month in operating profits before taxes. The company charges $20 per delivery.

The controller's office has estimated overhead costs at $9,000 per month for fixed costs and $12 per delivery for variable costs. You believe that the company should use regression analysis. Your analysis shows the results to be: