Answer:
90
Step-by-step explanation:
It starts going up by 6. Then it goes up by 2 more than six. 6, 8, 10. Going up 2 more than last time. 2018 would be 12 more, or 76, and 2019 would be 14 more, or 90.
B
3*boys=2*18
3*boys=36
boys=12
12+18=30
total number of students: 30
circumference=2πr
=2×3.14×8.5
=53.38cm
