Please do question part b and show equations and calculations to explain!

Each alternative in the table below possesses initial investments followed by uniform annual revenues for five (5) years. All alternatives will terminate at 5 years, where the last revenue will be received (i.e. in year 5). For the table below, consider a MARR of 12%. Incremental IRR Alternative Initial Investment IRR a B A 01 $25,000 13.5% B $30,000 17.6% 36.2% 7 $40,000 X 18.0% 7.9% A $65,000 9.7% p q r a. Select the best alternative using Incremental analysis. Give an explanation for your choice (5 Marks) b. Calculate the unknown IRR of alternative y (value X)? (15 Marks)