Consider the following two projects: Project Year 0 C/F Year 1 C/F Year 2 C/F Year 3 C/F Year 4 C/F Year 5 C/F Year 6 C/F Year 7 C/F Discount Rate Alpha -79 20 25 30 35 40 N/A N/A 15% Beta -80 25 25 25 25 25 25 25 16% Assume that projects Alpha and Beta are mutually exclusive. The correct investment decision and the best rational for that decision is to:

When balancing wheels with either dynamic or road force balancers, technician a says it is really important to follow the instructions provided with the particular balancer you're using. technician b says that when rebalancing a wheel, if it is out of balance, it is best to remove the old weights and recheck the balance before adding new weights. who is correct?