27. The traffic officer issued violation tickets to traffic violators. If 68 of them composed 80% of the total violators, how many violators are there in all? A. 83 B. 84 C. 85 D. 86 28. There are 18 roses in a bunch of 24 flowers. What percent of the flowers are roses? A. 18% B. 24% C. 60% D. 75% 29. A number is 20% of 50. What percent it is to 200? A. 5% B. 10% C.15% D. 20% Please help