If 15 freshmen represent 12.5% of the students attending the school dance, how many students are attending in all?
15 freshmen represent 12.5% of the total number of students attending the school dance.
Let x be the total number of students attending the school dance.
Therefore, 12.5% of x is equal to 15 freshmen.
0.125x = 15
x = 15 / 0.125
x = 120
So, there are 120 students attending the school dance in total.