Perry surveyed 60 students at her school and found that 0.45 of the students she surveyed said their favorite class is math. Another 35% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science? (5 points)
6
7
27
21
The number of students who prefer math is 0.45 * 60 = <<0.45*60=27>>27.
The number of students who prefer science is 0.35 * 60 = <<0.35*60=21>>21.
Therefore, 27 - 21 = <<27-21=6>>6 more students prefer math over science. Answer: \boxed{6}.