Go to the website wolframalpha. com and enter: "integrate." follow the instructions and use them along with the improved estimate to verify the fair price for 140 units of about $21 million given in the text. then enter "sum" into wolframl alpha and follow the instructions to verify the fair price by summing the first 140 values of c(n). discuss how the solution compares with the solutions provided by the integration and summation features on a graphing calculator, as well as the solution provided by adding up the values using a spreadsheet.