Answer:
125 students participated
Step-by-step explanation:
66% + 30% = 96%
100% - 96% = 4%
4% = 5 students
100% ÷ 4% = 25
25 × 5 = 125
125 students
30+66=96
100-96=4
5 students make up 4%.
100/4=25
25x5=125 students
