Answer:
45
Step-by-step explanation:
180 + 184 = 364
If there are 180 girls for every 184 boys, then there are 180 girls for every 364 students.
The fraction of girls is 180/364 = 45/91
If a class has 91 students, and the fraction of girls is 45/91, then there are
45/91 * 91 = 45 girls
