Answer: 9
Step-by-step explanation: read re read the problem and gather the information then divide 72 by 8 and you get 9 if you want draw it out and make 9 circles in each row
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️⭕️
Example