answers in excel. complete formula and steps please

here is the first question. base it here. please answer question 3 only. in excel with formula please. thank you

Question 3 50 Points Refer to the previous question. Suppose that each of the audit activities can be crashed by the amounts indicated in the following table. Activity AllowableCrash Days Cost per Day Activity Allowable Crash Days Cost per Day B 4. 2 2 800 1 5 D 4 J E A 2 $ 2,000 G 1 500 3,000 H 1,500 1.300 1.200 3 2,000 1.000 K 2,500 F 2 1,500 2 1,200 Use EXCEL-SOLVER to answer the following questions: a. What is the earliest the audit could be completed (using crash time) and associated incremental cost for this earliest completion time? b. How much incremental cost would be incurred if the client insisted that the audit be completed within 53 days? C. How much incremental cost would be incurred if the client insisted that the audit be completed within 56 days? Note: Allowable Crash days = Normal Time - Crash Time SAVE your EXCEL FILE as Surname Activity 1 Use the editor to format your answer Question 2 10 Points A national accounting firm has identified the following set of activities that must occur to carry out an audit for one of their major clients. Activity Days Required Predecessor(s) Activity Days Required Predecssor(s) A 12 G 6 B.E B 16 H 4 C.D.E 1 24 C.D.G D 12 FH E K 22 F.H F 12 L 1.) 13 14 9 A 24 a. Create a spreadsheet to calculate and summarize the earliest and latest start and finish times, the slack for each activity, and the critical activities. (use any method that will determine the ES, EF, LS, LF and Slack) b. What is the earliest time the audit can be completed? (rename sheet as national 1)