Final answer:
The number of students in set B, which is the set of students from the College of Business, is 82, obtained by adding the 55 freshman business students to the 27 sophomore business students.
Step-by-step explanation:
The question asks us to find the number of students in set B, which represents the students from the College of Business in a finite mathematics class. To find n(B), we need to add the number of freshman business students to the number of sophomore business students. According to the information provided, there are 55 freshman and 27 sophomores in the College of Business. Thus, the total number of students in B is 55 + 27 = 82.