Need help correcting the incorrect answers in screenshots

3 Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, Mr. McWhinney gathered the following sample information. The x 5 client sampled. column indicates the number of client contacts last month and the y column shows the value of sales ($ thousands) last month for each points Number of Sales ($ Number of Contacts, X Sales ($ 14 thousands ) , y 24 Contacts, x thousands) , y 23 30 12 14 48 90 20 28 50 85 16 30 55 120 46 80 50 110 Click here for the Excel Data File a. Determine the regression equation. (Negative values should be indicated by a minus sign. Do not round intermediate calculations. Round final answers to 2 decimal places.)\fb. Determine the estimated sales if 40 contacts are made. (Do not round intermediate calculations. Round final answers to 2 decimal places.) Answer is complete and correct. The estimated sales 75.59