1. D 12 2/7
2. 22 7/9 which is B hope this helps
Answer:
A
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
The percent of increase can be calculated using following formula:

In your case,
- Initial amount = 12 students;
- Final amount = 15 students,
then

The answer to this question is C . 4to 3