7. The state of New York is building a dam on a short river. Only one dam can be built, and two mutually exclusive sites for it are being considered. After monetizing all the benefits, the time streams for the two sites are as follows: NOW VII yr2 yr3 Yr4 SITE costs $3mil : 9m : 8m 4m 4m . 2m A benefits 2m 1. Bm 1. 9m 3 . 6m 4 . 2m SITE COSTS 4mil 1 .m Bm -7m . Am 4m B benefits 1 . m 2 . Bm 3: 3m 3. 9m 6. 4m At a discount rate of 11%, what is the present value of the net benefits of site A? What is the present value of the net benefits of site B