1. Email a teacher
2. Text messages
1. Phone call
2. In-person appointments
That one is super easy i believe you can get that !!
Radius is have of diameter so it is 5
Answer:

Step-by-step explanation:
The angle on a straight line is always 180 degrees.
Thus,

Remove the brackets:


Subtract 24 from both sides:


Divide both sides by 12:


Do 252 divided by 36 and you should get 7. so the average number of calls would be 7