(a) If the following projects are mutually exclusive and the MARR is 9%, which one(s) should be done? Why?
![2294_mutually exclusive and the MARR.png](https://secure.tutorsglobe.com/CMSImages/2294_mutually exclusive and the MARR.png)
(b) If the projects are not mutually exclusive, but the budget is $40K, which one(s) should be done? Why? What is the minimum attractive rate of return?