Answer:
87.0%
Explanation:
If we rewrite what is given we get that 3450 out of the 3966 students are taking math. Putting this into a fraction we get that:
Putting this in a basic calculator of any kind we find that this is equal to:
0.8698941
This is the fraction as a number, so to get it as a percentage we just have to multiply by 100%:
0.8698941 · 100% = 86.98941% ≈ 87.0%