12. After investing in drone industry for certain years, an investor finds that the net benefit is $10,000. Had he invested in bonds at 9% he could get $9,200, Had he invested in an Al industry he could get $11,000 with a 10% return. What is the RoR of his current investment? (hints. Values are PV] A: 8.89% B. 8.44% C. 9.11% D. 9.56% 7 13. Extra:- Which is better after considering benefit-cost ratio. 5 +5 =10 System X System Y EUAC- $132 $53 EUAB 139 $59 14. Extra: John expects a guaranteed ROR to triple his investment in 10 years. What nominal inter looking for? (Answer is in %) -(use calculator) A 11.60 B. 11.29 C. 12.00 D. 12.98