Mr. smith asked his students weather they prefer to go to a museum or the zoo for a field trip. he found that 35% of the students prefer to go to a museum,45% prefer to go to the zoo, and the rest have no preference. what is the ratio of students who have no preference to the students who prefer to go to the museum? a). 1: 4b). 1: 5c). 4: 7d). 4: 9the answer is coming but i don't know how. can someone show me how?