I want to say D but i am not for sure look up examples and see which one comes to mind
1. 35
2. 21
3. 11
Just substitute.
Answer:
Step-by-step explanation:
X = 90°
Well, ratios are basically fractions. There are 12 boys, so the ratio is 12/25. Since 25 - 12 is 13, there are thirteen girls, so the ratio of girls to student is 13/25.