I need the thought process and answer of question 12 13 14 Thank u for your help!!

12. The following table indicates the number of covers served and the gross sales per server for one three-hour period in Sally's Restaurant. Determine:(a) the average number of covers served per hour per server and (b) the average sale per server for the three-hour period. Gross Sales Per Server $237.40 $263.95 $188.25 Covers Served 71 Server 58 3. Use the information about Sally's Restaurant identified in Question 12 to complete the following a. Calculate the average check. b. Calculate the turnover for the three-hour period if there are 65 seats in the restaurant. 14. Given the information about Sally's Restaurant identified in Questions 3, assume the restaurant had 85,629 customers per year and 12 and 1 gross sales were $352,783.40. a. Calculate the average check. b. Calculate sales per seat for the year