7. Mr. Kim has a total collection of 220 marbles, 10% them collections? What is missing in the problem? B. Rate A. Base 8. What percent of 75 is 15? A, 20% B. 15% C.25 9. What is 75% of 807 A. 30 B. 40 C.5 _10) 22 is 40% of what number? A. 55 B. 45 C. 60​