Answer:
I can`t really see the question that well, but if I understand correctly here`s the first few.
1. Subtraction
2. Addition
3. Addition
4. Subtraction
5. Addition
6. Subtraction
It looks like its asking what is happening in those situations (is the number being added or subtracted). Sorry if that`s not much help
Answer:
7 students
Step-by-step explanation:
1+2+4=7students
You should search it on youtube becouse pepople cant really explain or draw the shape to show you
