Answer:
C. 3,640
Step-by-step explanation:
Enrollment the previous semester = 3,250 students
% increase in students = 12%
Additional enrollment this semester = 12% × 3,250 = 0.12 × 3,250 = 390 students
Enrollment this semester = enrollment the previous semester + additional enrollment this semester = 3,250 students + 390 students = 3,640 students